TWI311749B - Optical storage medium, manufacturing method of optical storage medium and optical storage device - Google Patents

Description

1311749 IX. Description of the invention: [Pictures of the Ming Dynasty] are related to an optical memory medium and an optical memory medium for optical recording 5 and reproduction by means of an optical pickup. Manufacturing method and optical memory device; in particular, an optical memory medium and optical memory for recording data on a recording layer of each bank or groove which is divided by a groove or a land, and then reproduced. Media manufacturing method and optical memory device. [Previously] 1 发明 Background of the Invention As the competition for high-density information recording media has intensified, the capacity of each recording medium has been increasing. On the other hand, the price of information recording media has also intensified, and the price has progressed toward low prices. With the increase in the capacity of one recording medium, the time required for media authentication (Certify, quality assurance) and initialization is increasing, and the manufacturing cost including quality assurance tends to increase. For example, in the MO Disk, the use of DWDD (Domain Wall Displacement Detection) enables the implementation of almost the same mini-disc under the application of almost the same optical system. (Mini Disk) 10 times the recording capacity. In order to take advantage of the DWDD 20 to achieve a high density, it is proposed to use the Land Groove recording of the deep trench substrate, and to temper the sidewalls of the bank and the trench to prevent the recording of data between the roads. Interference and implementation of a narrow track (for example, Non-Patent Document 1 and Patent Document 1). In such magnetic domain wall motion detection, the magnetic domain wall moves not only in the track direction, but also in the transverse direction of the 1311749. The movement of the track in the transverse direction of the magnetic zone causes interference of data between the tracks. This point will be explained in detail by means of Figures 31 and 32. As shown in Fig. 31, a groove portion 404 separated from the land portion 402 is formed on the MO substrate 400. The magneto-optical recording mark (Mark) 41 is recorded by the beam spot 412 in the orbit of the groove portion 404, and similarly, the beam spot 412 is used for reproduction. As shown in Fig. 32, the recording layer 4〇6 is formed on the substrate 400 in the same manner across the land portion 402 and the groove portion 4〇4. For the tempering treatment, for example, the intense laser light 420 is irradiated onto the land portion 402, and the recording layer 4?6 inside the substrate 400 is cut to reduce the function. Similarly, it is expected that the height between the land portion 4〇2 and the groove portion 404 can be utilized, that is, the groove is deepened, and the interference between the tracks can be similarly obtained.

[Non-Patent Document 1] The paper "15Gbit/in2 recording on a DWDD disc using a land/groove substrate with a red laser enabled by 15 a side-wall-annealing process", SPIE (The International Society for optical Engineering) Vol. 5069 (SPIE) [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei No. Hei 11-273170. However, in the land groove recording method using a deep groove substrate, it is necessary to narrow the track pitch to form both the land and the groove. 2 Weiweigou is difficult. On the other hand, when tempering is performed on the opposite side and the side wall, the focusing processing of the recording medium and the processing of the side walls of each track are necessary. Therefore, it takes a very long time to fully temper the recording media with tens of thousands of tracks (for example, about 15 minutes per piece), in the recording medium.

The I 1311749 body manufacturer will have a considerable increase in manufacturing costs due to this treatment. SUMMARY OF THE INVENTION 3 SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an optical memory medium, an optical memory medium manufacturing method, and an optical memory device which can perform high-density recording even if the tempering process is not performed in a media manufacturing factory. Another object of the present invention is to provide a 10 memory medium, a method of manufacturing an optical memory medium, and an optical memory device which can be changed to a high-density recording even if a memory medium which has not been tempered is provided. Further, another object of the present invention is to provide an optical memory medium, a method of manufacturing an optical memory medium, and an optical memory device for reducing the manufacturing cost of a high density recording medium. In order to achieve the object, the optical memory medium of the present invention includes at least a substrate having a land and a groove formed by a change in physical shape, and an optical memory medium for recording and reproducing by using the light 15, and a substrate provided on the substrate. The recording layer, and the groove or the land is separated from the groove or the bank by the light irradiation, and rewritably has tempering management information indicating whether or not the tempering process for increasing the recording density is performed. Further, in the optical memory medium of the present invention, the tempering management information is preferably a shape in which pits are formed in the groove or the bank. Further, in the optical memory medium of the present invention, it is preferable that the tempering management information is formed on the recording layer formed in the groove or the bank. Further, in the optical memory medium of the present invention, it is preferable to have a system area and a user area in which the aforementioned 1311749 tempering management information is formed. Further, in the optical memory medium of the present invention, it is preferable that the recording layer is formed of a magneto-optical layer. Further, in the optical memory medium of the present invention, it is preferable to form a pit shape (eGntents) in the tempering region of the bank or the groove. Further, a method of manufacturing an optical memory medium according to the present invention includes the steps of forming a substrate having a groove and a bank formed by a change in physical shape and forming a recording layer on the substrate, in the groove 2 15 15 The light of the aforementioned recording layer is separated by the above-mentioned groove or bank, and the step of displaying the tempering management information indicating the tempering process of the degree of ambience can be rewritten. Further, in the method of manufacturing the optical memory medium of the present invention, the step of forming the tempering management information is a step of forming the groove or the land in a pit shape. Further, in the method of manufacturing the optical memory medium of the present invention, the step of bringing the tempering management information into is the step of recording the layer. The step of forming the substrate in the optical recording "The method of manufacturing the body of the present invention" includes the step of forming the shape of the pit in the tempering region 7 of the bank or groove. Buben Maoyueguang (5) recalls that the device has a physical shape change, the ditch and the shore 'and' read the optical memory medium with the recording layer (5) take the head 'and' according to the presence or absence of the optical memory The tempering management information obtained by the media green to the tempering process, using the light to illuminate the aforementioned record ^ 20

I 1311749

The I layer is separated by the aforementioned grooves or banks, and a controller for tempering treatment for increasing the recording density is implemented. Further, in the optical memory device of the present invention, the optical pickup is configured to read the tempering tube information formed in a pit shape on the groove or the bank. Further, in the optical memory device of the present invention, the optical pickup is configured to read the tempering management information formed on the recording layer of the groove or the bank. Further, in the optical memory device of the present invention, the optical 10 read head reads the optical memory medium having a system area and a user area in which tempering management information is formed, and the controller is based on the foregoing The fire management information tempers the aforementioned user area. Further, in the optical memory device of the present invention, it is preferable that the recording layer of the optical memory medium is constituted by a magneto-optical layer. Further, in the optical memory device of the present invention, the optical pickup is adapted to read the contents of the pit shape formed in the tempering region of the land or the groove during the tempering process. Further, in the optical memory device of the present invention, the controller is adapted to update the tempering 20 management information of the optical recording medium after the tempering process. Further, in the optical memory device of the present invention, the controller determines the recording density of the user area of the optical memory medium with reference to the tempering management information of the optical memory medium. Further, in the optical memory device of the present invention, the control 1311749 is based on the tempering management information display of the Lishu optical memory medium, and the tempering of the user area of the optical memory medium is relatively high. Recording and reproduction is performed, and the tempering management information of the optical memory medium indicates that the tempering date f is not completed, and the good area of the optical memory medium is captured and reproduced at a relatively low density. Further, in the optical memory device of the present invention, the controller may perform tempering processing of the user area of the optical memory medium when the tempering management information of the optical memory medium of the above description indicates that the tempering is not completed. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross-sectional view showing the structure of an optical memory medium according to an embodiment of the present invention. Fig. 2 is a diagram showing the relationship between the pits of the medium and the M0 mark in Fig. 1. Fig. 3 is an explanatory view of the tempering management area of the medium in Fig. 1. 15 figure. Fig. 4 is an explanatory diagram of a recording method of the tempering management area in Fig. 3. Fig. 5 is a management information explanatory diagram of the tempering management area of Fig. 3. Fig. 6 is a view showing another management information of the tempering management area of Fig. 3. Fig. 7 is a block diagram showing an optical memory device according to an embodiment of the present invention. Figure 8 is a block diagram of the signal processing system of the optical disk drive of Figure 7. Figure 9 is a diagram showing the relationship between the configuration of the detector and the generated signal of Figure 8. Fig. 1 is a view showing the configuration of a recording density change according to a third embodiment of the present invention. 4 Fig. 11 is a recording density change process of the third embodiment of the present invention.

I 1311749 k Flow chart. Fig. 12 is a graph showing the relationship between the intensity of the illumination light and the intensity of the applied magnetic field in Fig. 11. Figure 13 is a graph showing the relationship between the maximum light intensity and the MO time base error. 5 Figure 14 is a plot of pit regenerative strength versus MO time base error. Figure 15 is a flow chart showing the processing of the tempering management information of the second figure. Fig. 16 is another explanatory diagram of the recording processing of the tempering management information of Fig. 11. Fig. 17 is a flow chart showing another processing of the recording density change according to the first embodiment of the present invention. Fig. 18 is a flowchart showing the processing of the second embodiment of the recording density changing method of the present invention. Fig. 19 is an explanatory diagram of the content management table of Fig. 18. Fig. 20 is a flow chart showing another process of the second embodiment of the recording density changing method of the present invention. Fig. 21 is a flow chart showing still another processing of the second embodiment of the recording density changing method of the present invention. Fig. 22 is a view showing the configuration of the tempering management area of Fig. 21. Figure 23 is a view showing a tempering management area description of another embodiment of the present invention. Figure 24 is a view showing the structure of a track according to another embodiment of the present invention. Fig. 25 is an explanatory view showing a first embodiment of the optical memory medium of the present invention. Fig. 26 is an explanatory view showing a second embodiment of the optical memory medium of the present invention. Figure 27 is a view showing the constitution of a film of an optical memory medium according to another embodiment of the present invention. Figure 28 is a diagram showing the relationship between the pits of the medium and the phase change marks in Fig. 27. Figure 29 is a graph showing the relationship between the intensity of the illumination light and the phase change mark in Fig. 27. Fig. 30 is a flow chart showing the processing of the third embodiment of the recording density changing method of the present invention. 1〇 帛31 The picture shows the composition of the optical memory medium of the prior art. Figure 32 is an explanatory view of a conventional tempering process. [Embodiment J] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an optical memory medium, an optical memory device, and a recording density will be changed. The aspect of the present invention will be described with respect to the embodiment, the second embodiment, the other tempering treatment, the method of manufacturing the optical memory medium, the method of changing the recording density of other optical memory media, and other embodiments. [Optical Memory Media] FIG. 1 is a cross-sectional view showing a film structure of an optical memory medium according to an embodiment of the present invention; and FIG. 2 is a view showing a relationship between a pit and an M mark in the medium of FIG. 3 is an explanatory diagram of the tempering management area of the old medium; the figure * is an explanatory diagram of the recording method of the tempering management area of FIG. 3; and the 29th is a management information explanatory diagram of the tempering management area of the item; Figure 6 is an explanatory diagram of another management information of the management area of the tempering 12 1311749 of the fourth (4). Fig. 1 shows the film constitution of the aforementioned DWDD disc as an optical memory medium. As shown in Fig. 1, the DWDD optical disc 4 is formed by sequentially depositing a dielectric layer 4B such as SiNx or a regenerated layer 4C made of GdFeCo on a plastic substrate 4A which is optically transparent, by a general sputtering method. A switching layer 4D formed of TbFeCo composed of a low Curie temperature, a recording layer 4E formed of TbFeCo having a high Curie temperature, a metal protective layer 4G of a dielectric layer 4F, A1 or the like formed of SiNx or the like. A control layer for adjusting the movement of the magnetic domain walls may be additionally provided between the reproduction layer 4C and the exchange layer 4D. On the metal protective layer 4G, the ultraviolet curable resin layer 4H is usually formed by spin coating, and after spin coating, the resin layer 4H is stabilized by ultraviolet irradiation. The physical structure of the bank (including pits) and the groove is formed by a 4 plastic substrate 4A, which will be described later by a stamper method. If the DWDD disc 4 is illuminated to illuminate the light X, it will follow the recording medium.

In the 15 line direction Y, a high temperature region 作 is formed in the exchange layer 4D, and magnetization transfer (recording) is generated from the reproduction layer 4C toward the recording layer 4, and from the recording stratification to the reproduction layer 4 (: magnetization migration (reading) occurs, and The density above the resolution of the light can be recorded/reproduced. Fig. 2 is a schematic diagram showing the pattern of the bank and the groove of the information memory medium substrate 2 using the DD of Fig. 1 and showing the pits of the information memory medium. The relationship between the mark and the mark 3. The pit 414 of the pit row 4 - 提供 provides the function of guiding the groove (shore) at the time of recording and reproduction of the ΜΟ mark 41 。. That is, the case is formed in the information pit, The ΜΟ signal sequence 4-2 is recorded in the groove. In this example, the reproduction of the pit information which is also tempered is performed. At 13 1311749 a, the beam spot 416 is collected in the pit row 4 during the regeneration. Near the center of 1. When the MO signal 410 is recorded or reproduced, the beam spot 412 is concentrated near the center of the pit row 4-1. The tempering processing region 418 is between the MO signal columns 4-2. The pit row 4 is 1. 5 Also, in this example, for example, a disk shape having a diameter of Φ 90 mm is used. The track pitch (the pitch of the pit row 4 to 1) is 1 μm, the pit width is 0.35 μm, and the pit depth is 90 nm. In the second figure, although the MO mark is recorded only in the groove portion, Recording is performed on both the shore or the shore and the ditch. Further, as will be described later, a bank may be formed instead of the pit. 10 Fig. 3 is an explanatory view of the tempering management area of the memory medium 4 of Fig. 2; 4 is a diagram illustrating the recording method of the tempering management area in Fig. 3; and Figs. 5 and 6 are diagrams showing the relationship between the state of the tempering processing and the data of the management area in Fig. 3. In the example of Fig. 3, The system area (the format for storing the optical disc, the area information of the optical disc, etc.) provided on the innermost circumference of the optical disc 4 is provided with a tempering management area 4 15 15 so that the data area 42 is opened to the outside of the system area on the innermost circumference side. The tempering management area 40 stores the management information indicating whether the user area 42 has completed the tempering process as shown in Fig. 3. When shipping from the media manufacturer, the tempering process is recorded. The tempering management The recording method of the area 40 has two types - the magnetic light signal 40-1 is used. The recording method is another method of recording with the pit signal 40-2. That is, as shown in Fig. 4, in the case of recording by magneto-optical recording, there is a system that will include the management area. The area, the case where recording is performed without tempering, and the case where it is recorded after tempering. In the media factory 14 1311749, if the management information is recorded without tempering, the area is applied. Low-density recording. On the other hand, in the media manufacturing factory, when the management information is recorded after tempering, the area is subjected to high-density recording. Also, in the case of pit recording, the pit is used. Management information 5 The ROM signal is recorded on the substrate 4. When the tempering process is performed, the pits of the management information are destroyed by the high-intensity laser, and the tempering process is completed. In any case, the user area 42 has not been tempered when the media is shipped. The tempering management information is as shown in Figure 5. If the tempering is completed, the value of "1" is stored. If it has not been tempered, the value of "0" is stored. In the example of Fig. 6, the recording status of the user area 42 is further reflected in the management information. That is, if there is no tempering and the record is not recorded in the data department, the value of "00" is stored; if it is not tempered and the low density record is completed in the data department, the value of "01" is stored; If the fire is not recorded in the data department, the value of "10" is stored. If the tempering is completed and the high-density recording is completed in the data department, the value of "11" is stored. As such, in the present invention, the optical memory medium 4 is provided by the media manufacturer without tempering, and whether or not tempering is performed is determined by the user. Therefore, the tempering management area 40 is disposed in the optical memory medium 4, and when the tempering is performed 20, the information of the management area 40 is updated, so that the optical memory device recognizes that the tempering is completed, or has not been tempered, and The judgment is high density recording or low density recording. [Optical Memory Device] Next, an optical memory device of the present invention will be described. Figure 7 is an overall block diagram of an optical memory device of the embodiment of the invention 15 1311749; Figure 8 is a block diagram of the signal processing system of the optical disk drive of Figure 7; and Figure 9 is a detector of the eighth embodiment; The relationship between the configuration and the generated signal. Figure 7 shows the magneto-optical disc drive as an optical memory device. As shown in Fig. 7, the motor 18 rotates the optical information medium (MO disc) 4. In general, the M disc 4 is a removable medium as illustrated in Figs. 1 to 3, and the insertion port of the optical disc drive (not shown) is inserted. An optical pickup (0ptical pick_up) 5 has a magnetic head 35 configured to sandwich the optical information recording medium 4 and an optical head 7 〇 an optical pickup 5 by a ball screw transfer mechanism or the like 6 to move, any position in the radial direction of the optical information recording medium 4 can be accessed. Further, a driver 31 for driving the laser diode LD (laser diode) of the optical head 7 and a head driver 34 for driving the magnetic head 35 of the optical pickup 5 are provided. The servo controller for access 15-2 uses the output from the optical head 7 to perform servo control on the orbital actuator 6, the motor 18, and the focus actuator 19 of the optical head 7. The controller 15_1 causes the LD driver 31, the head driver 34, and the access servo controller 15 to operate to record and reproduce information. Next, the optical head 7 will be described in detail using Fig. 8. The light emitted from the laser diode LD with a wavelength of 660 nm is converted into parallel light by a collimating mirror (c〇Uimat〇r Lens), and is then passed through a beam splitter (beam SpHtter) 11 The objective lens is collected on the information recording medium 4. Here, the divergent light emitted from the laser diode LD is transmitted through the collimating mirror 10, and the number of openings is about NA = 0.18 16 1311749, which becomes parallel light, wherein the portion of ΝΑ =: 〇·ΐ5 is regarded as the objective lens 16 It is used as an active ingredient. For the objective lens 16, NA = 0.55, and a beam spot having a diameter of about φ = 1 μη is formed on the recording film of the optical recording medium 4 having a thickness of about 1.2 mm. 5 The outgoing light from the laser diode 1^0 is linearly polarized, polarized beam splitter

The characteristic of 11 is that the Ρ-polarized component is 70% penetrated, 30% is reflected, and the S-polarized component is almost 100% reflected. For the polarizing beam splitter, about 30% of the light incident as the ρ-polarized light is reflected, and is collected by the collecting mirror 12 on the APC (Auto Power Control) detector 13. The LD controller (driver) 31 sends a negative feedback from the output signal from the APC detector 13 to adjust the luminous intensity of the laser diode LD. On the other hand, the light collected on the optical information recording medium 4 is reflected by the light having a Kerr rotation angle of about ± 〇 8 degrees in response to the magnetization direction of the reproduction layer. The reflected light is again incident on the objective beam mirror 16 to the polarization beam splitter 11, wherein about 30% of the P-polarized component and almost 1003⁄4 of the S-polarized component are reflected. The reflected light passes through the polarizing beam splitter 14, and about 60% of the ρ polarizing components and a few S()/ of the S polarizing components. Will be reflected. The reflected light is separated into 2 20 polarizing components by Wallaston Prism 26 and collected by a collecting mirror 17 on a detector 2 5-2 divided into 2 parts (2 divisions). The respective outputs of the two-divided detectors 25-2 are differentially operated by the differential carrier 30 to detect the M〇 signal, and the respective outputs of the two-divided detectors 25-2 are added. The processor 29 performs an addition operation 'to detect the pit signal. 17 1311749 In other respects, among the light incident on the polarizing beam splitter 14, about 40% of the p-polarized component will penetrate, and through the collecting mirror 22 and the cylindrical mirror 21, τκ is formed in the four regions of the knife pair. Word service detector (serv〇Detector) 25 — 1 on. Fig. 9 is a view showing the configuration of the servo detector 25-. The servo detector 5 is divided into four regions of A to D, and the astigmatic aberration method is used by the FES signal generating circuit 23 by using the output of the servo detecting spot S, the 'Focusing Error Signal' signal. The detection is performed by the operation of FES = (a + C) - (B + D). Further, the "Tracking Error Signal" signal is detected by the TES signal generating circuit 24 by a push-pull method using TES = (A + D) - (B + C). The servo actuator driver (Serv 〇 Actuator Driver) 15 - 2S operates the objective lens actuator 19 with the 15 FES signal and the TES signal to perform focusing and orbit determination. The 'Motor Drive 15-2M drives the Spindle Motor 18 to rotate at a specified speed. Further, the above configuration is an example of the means for carrying out the invention, and the spot size detection method and the Foucault method have no problem. Further, regarding the orbit determination, a three-beam method, a differential push-pull method, a heterodyne method, a phase difference method, or the like can be used. Further, in the above configuration, although the rotation of the spindle motor is considered to assume a disc type information recording medium, it is possible to realize a tape medium having a channel corresponding to the guide groove. 18 1311749 [First embodiment of recording density changing method] Fig. 10 is a configuration diagram of a recording density changing system according to a first embodiment of the present invention; and Fig. 11 is a recording density of a third embodiment of the present invention. The change processing flow diagram 'Fig. 12 is the relationship between the intensity of the illumination light of Fig. 11 and the intensity of the applied magnetic field; Fig. 13 is the relationship between the maximum light intensity (peakpower) and the time base of the MO (jitter). Figure 14 is a relationship between the pit regeneration intensity and the MO time base error; Figure 15 is a flow chart of the tempering management information of the nth figure; and Figure 16 is the tempering management information of the 11th figure. Another record processing diagram. 10 is a configuration of a recording density changing system for delivering a media with an advertisement, which is the first embodiment of the present invention. As stated in the first page, the 2 sponsored by the X sponsor, the advertising agency 2G2 will send the advertising funds to the media manufacturer. The media manufacturer tears down the advertisement information into phase pit information and records it in the guide groove portion 4 of the information recording medium 4, and records the tempering management information in the tempering management area 40 as described later. In this case, the user area 42 of the lower media 4 is not subjected to tempering processing. Therefore, high-density recording reproduction cannot be performed. The media 4 X recorded with the advertisement information is supplied to the market, and is purchased for the user 2 〇6. The price of the information media 4 is subsidized by the sponsor's advertising fee 2, so the user 2〇6 can be referred to the optical information medium 4 at a cheap price. The user 206 only needs to purchase the media 4 The magneto-optical recording apparatus described in Fig. 7 and the like can be used as a rewritable medium that can be recorded at a high density. At this time, once the tempering process is performed, the phase 19 1311749 pit is used. The information will be regenerated due to the tempered laser light. It is also the message that the sponsor 2 will be conveyed * User 206. If you do this, then User 2 06 can be cheap. The price of the media can be purchased in a high-density 5 degree record and the media manufacturer 204 can reduce the manufacturing cost and provide the media at low cost because it does not need to be tempered. Moreover, the advertising sponsor 2〇0 The advertising cost can be reflected in the media cost' and the media 4X offering price can be further reduced. Figure 11 shows the flow chart of the user's tempering management. 10 (S10) When the user inserts the MO media into Figure 7 In the case of the M0 disc drive, the MO disc drive is started. That is, the spindle motor 18 rotates the M0 medium 4, and the light and head 5 read out the system area of the medium 4. The (S12) control state 15 is obtained in the system area. The tempering management information of the tempering management area 40 (Figs. 5 to 6). 3 15 (S14) The controller 15 to 1 determines that the medium 4 is fully tempered according to the tempering management information. (S16) When the controller 15 - 1 It is judged that the full tempering has not been completed, that is, there is an unre-fired user's output content reproduction confirmation request (the fire treatment confirmation is to be fired back to the field). If the user refuses the content reproduction, it will not do the same. The media is exited. At this time, the data section of the ship 4 becomes;; the recording density is 1 乂 low. Recording reproduction. The specific value of the low recording density is, the shortest mark of the mark f TM° pit is the shortest 17 μιη, using and The length is about 4 times concave, no. The recording density of the sample level is better. (S18) If the clothing user agrees to the content reproduction, the optical head 5 is tempered with the high-strength side 20 1311749 to regenerate the contents of the untempered portion. When the tempering is completed at the end of the whole region The information on the completion of the tempering is recorded in the recovery management area 40. (S20) If it is determined in step si4 that the full tempering is completed, or the tempering process is performed in step S18, it can be at a high density as described above. The recording and reproduction of the data section 42 is performed. According to the user's operation, recording and reproduction are performed as needed. However, when the user tempers on the way due to the user's operation, the update of the tempering information is not performed. It is a request for confirmation of content reproduction again. Further, when the user inserts the medium 4 which has completed the tempering of the entire area into the apparatus, and wants to reconfirm the meat content information recorded in the pit portion 4-1, the content information can be reproduced at a low intensity. Although the effect of the recording and reproducing characteristics of the data portion by the tempering treatment mainly depends on the anneal power, the number of tempering also has an effect. That is, in the case of low-intensity tempering, the characteristics are also improved by performing a plurality of temperings for 15 times. Also, it is better to use only one tempering in the vicinity of the optimum strength. Fig. 12 shows the time relationship between the light intensity (Light Power) and the applied magnetic field (Minetical field) irradiated on the M 〇 medium 4. As shown in Fig. 12, although the magnetic field is usually not added, when the MO signal is recorded, an inverted magnetic field is applied at the interval corresponding to the recording mark. At this time, between the two values of the maximum light intensity (Peak Power) Pwp and the minimum light intensity (Bottom Power) Pwb of the light intensity, the tone of the tone is irradiated at intervals of the reference clock τ. In the case of Μ〇 signal recording, it is also possible to illuminate the magnetic field by recording a certain intensity of 21 1311749 light, but it is preferable to irradiate the pulse light in order to increase the SNR (Signal to Noise Ratio) of the recording mark. In particular, the intensity interval of the maximum light intensity Pwp is preferably 1% of 11 for Ck) ck or less than 5% by weight. 5 When the M〇 signal is reproduced, it is performed with a relatively small light intensity (Read P〇wer) Pr. Further, the reproduction of the pit signal which also serves as the tempering of the guide groove is performed by the light intensity Pan which is greater than the maximum light intensity of the light intensity. In addition, in Fig. 12, in order to simplify the description, pr and pan are described with a certain light intensity, but in order to reduce the light which is folded back into the laser diode LD in the optical pickup 7 10 It is better to send a local frequency overlap of hundreds of MZ. The relationship of light intensity is as shown in Fig. 12, and pan$pwp>Pr$ Pwb is preferred. That is, the tempering intensity pang maximum light intensity pwp, as shown in Fig. 2, the portion of the guide groove 15 formed by inserting the medium 4 into the pit 414 of the MO mark 410, and applying light irradiation as a tempering region The recording film of the MO optical disc 4 in the portion of the tempering region undergoes a characteristic change. . Thereby, the SNR of the M 〇 mark 410 recorded between the tempered regions is improved for the magnetic wall movement in the vertical direction by the track control using the aforementioned DWDD. Further, the SNR improvement effect at the time of information recording obtained by the minimum intensity of the readout intensity Prg by the pulse light irradiation is improved. 13 and 14 are explanatory views of an embodiment of the present invention. In the MO optical disk drive of Fig. 7, the spindle motor was rotated 'with a certain condition of a linear velocity of 3 m/sec' for evaluation. The MO mark 410 is recorded with the RLL1-7 pitch signal of the shortest mark length ML = 〇.17 μιη. Furthermore, the pit signal 414 is the most 22

I 1311749 short mark length ML = 0. 68 μm of RLL1 — 7 tone signal for recording. The light irradiation intensity condition is 'set readout intensity Pr=2. 2 mW, minimum light intensity Pwb = 1 mW, let the tempering intensity Pan and the maximum light intensity pwp change to investigate the time base error characteristics of the nickname. Figure 13 shows the measurement of the MO time base error (%) for the maximum light intensity when the tempering intensity Pan 5 is changed from 〇 Mw to 13 mW. Further, Fig. 14 is a characteristic diagram of the MO time-base error (%) of the tempering strength Pan of 'the maximum light intensity Pwp at which the MO time-base error is the smallest in Fig. 13'. As understood from Figure 13, the tempering intensity Pan is small (Pan = 5 mW in Figure 10), and the large case (Pan = 13 mW in the figure), with no tempering In the case of processing (Pan = 0 mW in the figure), there is no change in the error characteristics of the MO time base, and if the tempering intensity is large, the time base error will increase. On the other hand, if the tempering intensity Pan is appropriately selected, for example, the back fire intensity of Pan: 9 mW ' is less than about 2 / 3 compared to the untempered 'MO time base error. In addition, in Fig. 13, the maximum light intensity Pwp is around 9 mW, and the MO time base error becomes minimum. Fig. 14 is a graph showing the relationship between the pit reproduction intensity (tempering strength) Pan and the MO time base 20 error at the maximum light intensity Pwp (= 9 mW) at which the MO time base error becomes minimum. As shown in Fig. 14, the MO time base error becomes extremely small near the tempering intensity Pan = 9 mW. Further, when the tempering strength Pan is gradually increased, the MO time base error tends to gradually increase. This reason can be considered because the change of the recording film caused by the tempering treatment reaches the recording area of the MO mark 410, and even the magnetic domain wall moving characteristic in the line speed direction is hindered. 23 1311749 According to this embodiment, each piece of MO disc 4 is to be tempered at a line speed of 3 m/sec on the user side and about 15 minutes on the side of the media manufacturer, because neither the tempering device is required at the media manufacturer. And it does not need to be tempered for 15 minutes per piece, so the manufacturing cost can be greatly reduced. 5 In addition, the tempering method can also rotate the spindle motor at a certain angular velocity to temper and perform pit information regeneration in proportion to the radial position of the media. Thereby, tempering can be performed without complicated control of setting the line speed to a certain degree. Next, the writing and updating of the tempering management information will be explained. Figure 15 is a flow chart of recording processing (writing and updating) of tempering management information recorded by magneto-optical recording. (S22) The tempering management data (Figs. 5 to 6) is data scrambled. (S24) ECC (error correction 15 code) and parity check code (Parity) are added to the scramble data, and RLL1-7 is transposed to perform magneto-optical recording. On the other hand, in the case where the pits form the tempering management information, as will be described later, the tempering region 40 of the medium 4 is not tempered in the pit recording. When the tempering zone 40 is renewed by the tempering process, as shown in Fig. 16, the high-intensity light X-1 is irradiated to the pit portion 4-1 of the tempering region 40 of the medium 4, so that 20 concave The pit portion 4 - 1 is deformed. The pit signal 414 is inverted from "0" to "1" by the deformation 4 - la' of the pit portion. In addition, a method of confirming the presence or absence of tempering treatment on the optical information recording medium may be performed by applying a magnetic field when the guide groove portion 4-1 is regenerated with high intensity, and confirming the presence or absence of tempering by the magnetization direction of the guide groove portion 4-1. . The tempering information management area is set up as described in 24 1311749 to manage the existence of tempering. Although the management is strict and effective, it must be managed on the other hand. On the other hand, in the tempering process, for example, by applying an alternating magnetic field of a certain frequency, it is possible to confirm the presence or absence of tempering treatment from the 5 magneto-optical signals of the guiding groove portion 4 to 1 at the next reproduction. However, since the magneto-optical signal from the guiding groove 4-1 is tuned by the pit signal, a longer mark, such as a single mark of 5 μm length, is recorded to detect a component corresponding to its frequency. The practice is better. Figure 17 shows another flow of user tempering management, using 10 examples of tempering management information in Figure 6. (S30) The user inserts the media into the CD player of Fig. 7, and the CD player is started. That is, the spindle motor 18 rotates the cymbal medium 4, and the optical head 5 reads out the system area of the medium 4. (S32) The controller 15-1 obtains tempering management information (Fig. 6) of the tempering management area 15 40 in the system area. (S34) The controller 15-1 determines whether or not the medium 4 has completed full tempering based on the tempering management information. (S36) When the controller 15-1 determines that the full tempering has not been completed, that is, when there is an untempered area, the user is required to output the content reproduction confirmation request (total back to the 20 fire processing confirmation request). (S38) If the user rejects the content reproduction, the tempering process is not performed, and the data section of the media 4 performs recording and reproduction at a low recording density in accordance with the user's request; thereafter, the information of the tempering management area 40 is updated to be non-returnable. The fire area (for example, "01" in Fig. 6), and then the media 4 is exited. Low recording density 25 1311749 The specific value is, the shortest mark length ML=0 for the MO mark. 17 μπα is preferably used at the same level as the shortest mark length of pits having a length of about 4 times. (S40) On the other hand, if the user accepts the content reproduction, the optical head 5 performs the tempering process with high intensity while reproducing the content of the untempered portion. If the tempering is completed in all areas, the information on the completion of the tempering (for example, "10" in Fig. 6) is recorded in the tempering management area 40. (S42) If it is determined in step 34 that the full tempering is completed, or tempering is performed in step S40, recording reproduction by the high-density data portion 42 10 as described above becomes possible. According to the user's operation, record and reproduce as needed. In this way, by granting the user the option of tempering, it is possible to select a high-density change at the user's discretion. [Second Embodiment of Recording Density Change Method] 15 The size of the content information recorded in the guide groove, that is, the recessed portion 4-1, is recorded on the medium 4 in order to be reproduced without interruption during the tempering process. Overall is better. The first embodiment corresponds to this form. On the other hand, there is a case where the contents of the comprehensive area are prepared with a fixed clock frequency. In this case, the content information can be decomposed into several segments, and a dummy Ditch Data is inserted between the segments to adjust the capacity of the pit information. Fig. 18 is a flowchart showing the processing of the second embodiment of the recording density changing method of the present invention; and Fig. 19 is an explanatory diagram of the content management table of Fig. 18. There are 4 contents in this place, which will be explained separately in the case of non-regeneration. 26 1311749 (S50) The user inserts the MO media into the MO drive of Fig. 7, and the MO drive starts. That is, the spindle motor 18 rotates the MO medium 4, and the optical head 5 reads out the system area of the medium 4. (S52) The tempering management area 40 in the system area is as shown in Fig. 19, and each content No. is stored.  1~No.  The tempering discriminating value of 4 (tempering management information), and the content of the start sector address (Sector Address) and the ending area address. Here, an example in which four contents are recorded on one piece of media 4 is shown. The controller 15-1 obtains the tempering management information. (S54) The controller 5-1 outputs a content reproduction confirmation request to the user (i.e., tempering processing confirmation request). If the user refuses to reproduce the content, the tempering process is not performed and the media is quit. At this time, the data portion of the MO medium 4 can be recorded and reproduced at a low density. The specific value of the low recording density is preferably the same as the shortest mark length of the MO mark of ML = 0·17 μm, and the recording density of the same level as the shortest mark length of the pit of about 4 times the length. 15 (S56) If the user accepts content reproduction and selects the reproduced content (in this example, the content No. is selected.  2) The controller 15-1 obtains the start address and the end address of the corresponding content of the tempering management area 40, and performs the tempering process on the area of the content of the medium 4 by the optical head 5 with high intensity. The reproduction of this content. 20 (S58) If the area of the content has been tempered, the tempering discriminating value of the content is updated in the tempering management area 40 to the information of the tempering completion. By this tempering process, the area of the content No. 2 of the data section 42 can be recorded and reproduced at a high density as described above. According to the user's operation, record and reproduce as needed. Then, the media 4 is exited. 27 1311749 Similarly, select Content No.  1, No.  3. No.  The same is true at 4 o'clock. If so, the user can select the recording density corresponding to the number of reproduced contents, and the user's tempering processing can be divided and executed. For example, it is possible to perform a so-called tempering process of the necessary capacity division (here, content), and perform 5 high-density regeneration and recording; after that, when more capacity is required, other content areas are tempered. Use the aspect. 20 is another processing flowchart of the second embodiment of the recording density changing method of the present invention. Similarly to FIG. 18, an example of the content management table of FIG. 19 is used to provide four contents. 10 examples are given for examples of non-regeneration. (S60) The user inserts the MO medium into the MO disc drive of Fig. 7, and the MO disc drive is started. That is, the spindle motor 18 rotates the MO medium 4, and the optical head 5 reads out the system area of the medium 4. (S62) The tempering management area 40 in the system area is similar to the example of Fig. 18, and as shown in Fig. 19, each content No. is stored.  1~No.  The tempering discriminant value of 4 (tempering management information), and the start zone address and end zone address of its contents. Here, an example in which four contents are recorded on one piece of medium 4 is shown. The controller 15-1 obtains the tempering management information. (S64) The controller 15-1 outputs a content reproduction confirmation request to the user (also 20, that is, a tempering process confirmation request). If the user refuses to reproduce the content, the tempering process is not performed and the media is quit. At this time, the data portion of the MO medium 4 can be recorded and reproduced at a low density. The specific value of the low recording density is such that the shortest mark length of the MO mark is ML = 0. 17 μιη, preferably with the shortest mark length of about 4 times the length of the pit, is preferably at the same level as the recording density. 28 1311749 (S66) If the user accepts content reproduction and selects the reproduced content (in this example, the content No. is selected.  2) The controller 15-1 obtains the start address and the end address of the corresponding content of the tempering management area 40, and uses the optical head 5 to temper the area of the content of the medium 4 with high intensity, while the side 5 Regenerate the content. If the area of the content is tempered, the tempering discriminating value of the content is updated to the tempered completion information in the tempering management area 40. With this tempering process, the content of the data section 42 is No.  The area of 2 can be recorded and reproduced at a high density as described above. (S68) When recording and reproducing are performed according to the user's operation, first, the internal capacity is No.  Since the area of 1 is not tempered, recording and reproduction are performed at a low density, and the tempering discriminating value of the content of the tempering management area 40 is updated to be non-temperable ("01" in Fig. 6). (S70) Second, Content No.  The data area of 2 corresponds to the tempering discriminating value of the tempering management area 40 described above, and is recorded and reproduced at a high density. 15 (S72) In addition, the content No. is performed according to the user's operation.  In the recording and reproduction of the data areas 3 and 4, since the tempering is not performed, the recording and reproduction are performed at a low density, and the tempering discriminating value of the content of the tempering management area 40 is updated to be non-temperable (Fig. 6) "01"). Then, the media 4 is exited. Similarly, if you select the content No.  1, No.  3. No.  At 4 o'clock, the 20 actions are the same. Further, in steps S64 and 66, a plurality of contents may be selected. Further, tempering processing may be performed in the sector unit and the block unit. 21 is still another processing flowchart of the second embodiment of the recording density changing method of the present invention; and FIG. 22 is a composition of the tempering management area of FIG. 21, 13 1311749 (S80), the user inserts the M0 medium into the first In the picture of the MO CD player, the M drive will start. That is, the spindle motor 18 rotates the MO medium 4, and the optical head 5 reads out the system area of the medium 4. 5 (S82) The tempering management area 40 in the system area is as shown in Fig. 22, and each section No. is stored.  l~No.  M237 tempering discriminant value (tempering management Gongxun). The example shown here is an example of 65,237 sections in one piece of media 4. The controller 15-1 obtains the tempering management information. (S84) The controller 15-1 investigates the tempering management information to determine whether there is a 10 tempering section. (S86) Control benefit 15 - 1 If the profit is 〉 and there is an untempered zone, the user output content reproduction confirmation request is made. If the user chooses not to reproduce the content, the high-density recording and reproduction of the data section can be performed because the entire area is tempered. Then, the media 4 is exited. On the other hand, if content reproduction is selected, the content of the pit portion 4-1 of the medium 4 is read out at a low intensity (e.g., readout intensity Pr), and flash reproduction is performed' and then the medium 4 is exited. (S88) If it is determined in step S84 that there is an untempered section, the controller 15-1 outputs a regeneration confirmation request (i.e., a tempering process confirmation request) to the user. (S90) If the user refuses to reproduce the content, the tempering process is not performed, and the data section of the MO 20 media 4 can perform recording and reproduction at a low recording density. Then, the tempering discriminating value of the section (single number of travels) of the tempering management area 40 is updated to be non-temperable ("01" in Fig. 6). (S92) On the other hand, if the user accepts the content reproduction and selects the reproduced content, the controller 15-1 uses the optical head 5 to temper the content area of the medium 3, 1311749 body 4 with high intensity. - Let the content regenerate. When it is determined whether or not the tempering in the entire region has ended, and the tempering in the entire region has not ended, the process returns to step S88. > (S94) On the other hand, if the tempering of the entire area is completed, the tempering discriminating value of the returning fire management area 40 is updated to completion of tempering. By this tempering treatment, the user area is recorded and reproduced with the high density as described above. Then, the media 4 is exited. In this way, the tempering process can be managed according to the sector unit. If this is done, the user can select the recording density corresponding to the necessary number of segments, and 10 can divide the user's tempering process to perform. The same is true when managing by block. [Other tempering treatment] Fig. 23 is a view showing the configuration of another arrangement example of the tempering management area of the present invention. In this example, the user area 42 of the media 4 is divided into two, and a system area including the tempering management area 40 is provided between the 2 15 user areas 40. That is, the tempering management area 40 is not limited to being disposed at the innermost circumference, and may be provided between the user areas and the outermost circumference, and the like. Fig. 24 is a view showing a configuration of a wobble pit suitable for the present invention. The undulation pit is disclosed, for example, in Japanese Laid-Open Patent Publication No. Hei 11-328678. That is, in the method of setting the Prepit portion for the address management in the MO track of the MO optical disc 4, it is necessary to reduce the light intensity of the quasi-pit portion when recording the MO signal of the bank. If the pit portion 414 is formed by the Wobble Track 4-1, that is, by using a track which is swayed (snake) with the rotation, the address can be detected by the wobble signal obtained by the frequency of the wobble. Because of 31 1311749, there is no need for quasi-four-pits, and there is no need to do such control. [Method of Manufacturing Optical Memory Media] Next, a method of manufacturing the optical memory medium 4 suitable for the present invention will be described. The 25th® is an engineering aspect of the manufacturing method of the optical memory medium having the information of the present invention, and is an example of recording information of the tempering management using magneto-optical information. As shown in Fig. 25, after optical polishing, the photoresist layer 102 was spin-coated on the cleaned glass master. The photoresist layer 102 is formed in the same manner with a thickness close to the pit depth of 80 nm. X, in order to improve the wettability of the photoresist layer 1 〇 2 spot 10 15 20 glass master, to pre-coat the azo c〇upling agent on the glass master 100 before applying the photoresist. ) is better. After the photoresist is applied, in order to volatilize the organic solvent contained in the photoresist, for example, 9 (TC, i hour or so of heating is carried out. _ while the spindle motor is used to form the photoresist layer 1 () 2 The glass master has just been precisely rotated and carried out on its side - in order to form a pit-shaped exposure. For example, it will come from a laser along the "^" (child = 446. The light of lnm) is collected by the objective lens of Gao Shun (for example, na==〇 9) to the mirror society, and the exposure of the shape is called. The exposed glass master 100 is subjected to development for a predetermined period of time with a predetermined concentration of sodium hydroxide solution, and a pit-shaped photoresist (4) 2 is formed on the original disk. After the raw disk of the soil has just been formed into a thin conductive film by electroless recording, the thickness of the metal layer 104 is removed from the original glass plate by the electrolysis method. The photoresist is to be washed, and then, the inner (four) mill is added, and the shape is 32 1311749, and the metal stamper 106 is formed. The metal stamper 106 and a mold suitable for a predetermined optical disk size are used to form a plastic substrate 4A made of polycarbonate. The formed substrate 4A was subjected to addition of 5 heats in an oven at about 80 ° C for 1 hour in order to remove moisture. After the substrate 4A having sufficiently removed moisture is inserted into the vacuum chamber, the dielectric layer 4B, the reproduction layer 4C, the exchange layer 4D, the recording layer 4E, the dielectric layer 4F, and the metal protective layer shown in Fig. 1 are formed by sputtering. 4G. The medium 4 taken out from the vacuum chamber is coated with a spin coating method to protect the layer 4H. The protective layer 4H is an ultraviolet curable resin. The thickness is about 10 μηη, and it is uniformly formed. Thereafter, the protective layer 4 is hardened by irradiation of ultraviolet rays to form the medium 4. In an embodiment of the present invention, the tempering management information is recorded in the tempering management area 40 of the recording layer 4 of the medium 4 by the irradiation light passing through the magnetic head 35 and the objective lens 16. The written tempering management information is information showing the untempered fire of Fig. 5, or the untempered and unrecorded information of Fig. 6. 15 This tempering management area 40 is a case where the tempering state is performed in a low-density state as shown in Fig. 4, and tempering is performed, and high-density recording is performed. In this way, at the media manufacturer, the media 4 can record the tempering management information, and the user area 42 is provided to the city without being tempered. Further, the aforementioned pit shape is formed in accordance with the aforementioned content information. The content information is suitable for sound, video, software, and the like. Fig. 26 is an explanatory view showing the second embodiment of the method for manufacturing an optical memory medium having tempering management information according to the present invention, showing an example in which tempering management information is recorded in a pit train. 100 1311749 β-rotation shown in the 'optical grinding, in the washed glass original plate nm (four) into the layer 1G2. The photoresist (4) 2 is formed at a depth close to the pit depth of 80. Hair, "after light (four)" in order to let the organic solvent contained in the photoresist, for example, 90c, heating for about 1 hour. - With the spindle horse, the glass with the photoresist (four) is finely rotated. : In order to form the exposure of the pit shape. For example, it will come from the cd laser 10: The light X of 1 _) is exposed to a pit shape by a high NA (for example, NA to 9) pair of mirror Lm heads. In another embodiment of the invention, the exposure of the tempering management information is performed by the irradiation light to the objective lens 16 in the region corresponding to the tempering management region 4G of the photoresist layer. The tempering management information for exposure processing is the information that is not tempered by the 5th figure, or the untempered and unrecorded information of Fig. 6. 15 The glass master 1GG which has been exposed to the tempering management area is subjected to development for a predetermined time by a predetermined concentration of sodium hydroxide solution, and the pit-shaped photoresist layer 1〇2 is formed on the glass master 1〇〇. After the glass master 1 is formed by the beneficial electrolysis method, the electrolytic layer is subjected to a nickel plating operation to form a metal layer 104. 2〇 The metal layer 1G4 is removed from the original glass ship, and is cleaned in order to remove the remaining photoresist. Thereafter, the inner surface polishing process and the outer shape punching process are performed to form the metal stamper 106. The metal stamper 1〇6 and the prayer mold suitable for the predetermined disc size are used to form the plastic substrate 48 made of polyester. The formed substrate was subjected to heat removal in an oven at about 80 ° C for 1 hour from the moisture removal for Ding 34 1311749. After the substrate 4A having sufficiently removed moisture is inserted into the vacuum chamber, the dielectric layer 4B, the regenerated layer 4C, the exchange layer 4D, the recording layer 4E, the dielectric layer 4F, and the metal protective layer shown in Fig. 1 are formed by sputtering. 4G. 5 The medium 4 taken out from the vacuum chamber is coated with a spin coating method to protect the layer 4 Η. The protective layer 4 is an ultraviolet curable resin. The thickness is about 10 μηι, which is uniformly formed. Thereafter, the protective layer 4 is hardened by irradiation of ultraviolet rays to form the medium 4. In this way, the medium 4 in which the tempering management information is recorded is created. In this example, the user area 42 is also provided to the market by the media manufacturer 10 in an untempered state. [Method of Changing Recording Density of Other Optical Memory Media] In the above description, the magneto-optical recording medium is described as an optical memory medium, but other optical memory media can be applied. The following will use phase change media as an example of another optical memory medium. Figure 27 is a cross-sectional view showing an optical memory medium according to another embodiment of the present invention, showing a film configuration of a phase change type medium. On the optically transparent substrate (polyester substrate), a dielectric layer 41 such as ZnS·SiO 2 or a recording and reproducing layer 4J and 20 ZnS formed of GeSbTe is sequentially formed by a general sputtering method.  The dielectric layer 4K of Si02 or the like, and the metal protective layer 4G of A1. On the metal protective layer 4G, a general ultraviolet curable resin 4H is formed by a spin coating method, and is stabilized by ultraviolet irradiation. Fig. 28 is a view showing the relationship between the pits of the phase change type medium of Fig. 27 and the phase change marks; and Fig. 29 is an explanatory view showing the light intensity when the phase change mark 35 1311749 of Fig. 28 is recorded. As shown in Fig. 28, in the substrate 4, with respect to the pit signal 414 which is recorded by physical unevenness, the phase change mark 43 uses the phase state of the recording and reproducing layer 4j formed of GeSbTe (crystallization or non-crystal Crystal) to make a record. Specifically, the recording and reproducing layer 4J can be phase-changed in a crystalline state having a high reflectance rate and an amorphous state having a low reflectance, and the phase change mark 430 is formed by a change in its optical refractive index. The tempering zone 418 is the same as the example of Fig. 2, which is the area of the pit row 4-丨. As shown in Fig. 29, the high light intensity 10 (Pwa) for making an amorphous state and the light intensity Pwc for producing a crystalline state are set with respect to the bias intensity Pb which is substantially close to the reproducing light intensity (reading intensity). . When the recording and reproducing layer jm recording medium formed of GeSbTe is irradiated with high intensity Pwa, after being heated at a normal temperature, it is rapidly cooled to form an amorphous enamel core, and if the irradiation is lower than the light intensity Pwa, the intensity pwc After the light is heated by the recording and reproducing layer 4, the ship 4 is slowly cooled, and five ports are formed into a crystal form. Because of this difference, the phase change flag is formed (written). As shown in Fig. 9, the light intensity of the higher intensity Pwa is irradiated and the GeSbTe layer 4J is damaged, and the physical properties are changed. ', P passes through the light intensity pan to illuminate the concave 20 pits 414 as shown in the second figure' in the track column portion formed by the pit row 4 - the inspection layer 4J will deteriorate, The note 430 expands in a direction perpendicular to the track. Also, P$ is treated by tempering, and the recording and reproducing characteristics of the phase change mark 43 recorded between the pit trains 4-1 are improved. Further, the readout of the phase change mark 430 is to irradiate the read light of the light intensity Pb, and 36 1311749 reproduces the recorded data by the phase change mark by the difference in the reflectance described above. Similarly, a medium constituted by a land/groove in which pits are not formed as shown in Fig. 31 can be used. For example, the bank portion 402 of Fig. 31 is subjected to tempering, and the MO signal is recorded in the groove portion 404. Conversely, the groove portion 404 may be subjected to a tempering process, and the MO signal may be recorded on the land portion 402. Next, a method of changing the recording density according to the third embodiment of the present invention will be described. In the foregoing embodiment, although the advertisement is formed by the pit according to the business model as shown in Fig. 10, it is not limited to this aspect, and the medium is not formed in the pit as shown in Fig. 31 Can be applied. Fig. 30 is a flowchart showing the recording density changing process of the third embodiment of the present invention, and is an example of using the tempering management information of Fig. 6. (S100) The user inserts the MO media into the MO disc drive of Fig. 7, and the MO disc drive is started. That is, the spindle motor 18 rotates the MO medium 4, and the optical head 5 reads the system area of the medium 4. (S102) The controller 15-1 acquires tempering management information (Fig. 6) of the tempering management area 40 in the system area. (S10 4) The controller 5-1 determines whether or not the full tempering of the medium 4 is completed based on the tempering management information. 20 (S106) When the controller 15-1 determines that the full tempering has not been completed, that is, when it is determined that there is an untempered area, it is determined according to the tempering management information of Fig. 6 whether the user area 42 has been made low density. recording. (S108) When there is already a low-density recording, according to the user's request, in the user area of the MO media 4, recording with a low recording density is performed, and then the information of the tempering management area 40 is updated. Media 4 exited. (S110) On the other hand, when the user area 42 does not perform low-density recording at all, the user is asked whether or not to perform full tempering. If the user chooses not to perform a full tempering, the process proceeds to step S108 for low density recording. On the other hand, if the user is subjected to the full tempering operation, the controller 15-1 uses the optical head 5 to perform tempering treatment with high intensity. At this time, since the contents made by the pits are not formed, the content reproduction is not performed. Once the tempering is completed in all areas, the information on the tempering completion is recorded in the tempering management area 40 (for example, "10" in Fig. 6). (S112) If it is determined in step S104 that the full tempering is completed, or if the tempering process is performed in step S110, the recording and reproduction of the data unit 42 having the high density as described above can be performed. According to the user's operation, record and reproduce as needed. By doing so, it is possible to make a high-density change at the user's discretion by using the option of giving the user a tempering option. That is, depending on whether or not to temper the entire media, high-density recording and low-density recording are selected. Further, when the recording has been made at a low density, since the tempering process cannot be performed in order to protect the user data, it is necessary to record and reproduce at a low density in the future. 20 In addition, when low-density recording is not performed, it is possible to select whether or not to perform tempering processing, and when tempering has been performed, it can be used as a high-density recording medium for recording reproduction. Furthermore, even when used as a low-density recording medium, the entire disc can be reformatted and converted into a high-density recording and reproduction by tempering. 38 1311749 Although the foregoing implementations are tempered in a comprehensive unit, tempering may be performed in block units or in sector units. However, if practicality is considered, since the management information is expanded in units of segments, it is preferable to divide the disk into tens of blocks for processing. 5 When managing the tempering information in block units, high-density recording and reproduction and low-density recording and reproduction can be performed separately for the tempered finish area and the untempered area. At this time, when the usable area of one side area is full, it moves toward the other side of the use area, and the recording density must be switched. [Other Embodiments] Although the present invention has been described in terms of the embodiments, the present invention may be variously modified without departing from the scope of the present invention. For example, the size of the phase pits is not limited to the aforementioned values, and others can be applied. Further, other magneto-optical recording materials can be applied to the magneto-optical recording film. Similarly, the magneto-optical recording medium is not limited to a disk shape, and a card shape or the like may be used. Further, when high-intensity light irradiation is used to perform reproduction of the content information, an area for recording and reproducing the recording film may be estimated based on an error rate of the reproduction information or an amplitude value of the detection light component including the reproduction information. The defect amount of the segment 'is further managed the defect 20 segment according to the estimated defect amount. Further, the content information is formed by phase pits caused by physical irregularities, and the phase pits are snaked for detecting address information and clocks. The guiding groove of the medium forms a concentric or spiral track, and is rotated for information recording and reproduction. The use of high-intensity light to illuminate the aforementioned content information can also be performed in the orbital direction at a constant linear velocity. In addition, the guiding groove is formed to form a concentric or spiral track, and is rotated for recording and reproduction of information. The rotation of the aforementioned content information by the high-intensity light is performed at a radial position to form a rotation with a certain number of rotations. The content information is composed of an executable file, and the high-intensity light is irradiated onto the guiding groove, and the content information is automatically activated when the content information is reproduced, and the state of the sound information and the image information can be output. 10 Industrial use possibility Because the tempering management information is recorded and provided to the user without performing tempering on the optical memory medium, the tempering process can be performed according to the user's choice, and the area between the tracks can be utilized. The tempering effect makes high-density recording and reproduction. At this time, since the initializing processing (tempering processing) in the recording medium manufacturing factory can be omitted, the medium can be provided at low cost. Further, since the deep groove medium is not required by the tempering effect, the manufacture of the substrate for the medium becomes easy. In addition, it is desirable to record the advertisement information as content information in the pit portion, so that the content can be automatically reproduced in the tempering process, so that the media price can also be supplemented by the advertising fee. [Brief Description of the Drawings] Fig. 1 is a cross-sectional view showing the structure of an optical memory medium according to an embodiment of the present invention. Fig. 2 is a diagram showing the relationship between pits and MO marks of the medium of Fig. 1. Fig. 3 is an explanatory view of the tempering management area of the medium in Fig. 1. 40 1311749 This is an explanatory diagram of the recording method of the tempering management area in Fig. 3. The second figure is a management information illustration of the tempering management area of Fig. 3. Figure 6 is another management information description of the tempering management area in Figure 3. The tSJ 〇 >" figure is the overall block diagram of the optical memory device of Guiming. Figure 8 is a block diagram of the signal processing system of the optical disk drive of Figure 7. Figure 9 is a diagram showing the relationship between the configuration of the detector and the generated signal of Figure 8. Fig. 1 is a block diagram showing a change in recording density 10 according to the first embodiment of the present invention. Fig. 11 is a flow chart showing the recording density change processing of the third embodiment of the present invention. Figure 12 is a graph showing the relationship between the intensity of the illumination light and the intensity of the applied magnetic field in Figure U. 15 Figure 13 is a graph showing the relationship between the maximum light intensity and the M〇 time base error. Figure 14 is a plot of pit regenerative strength versus MO time base error. Figure 15 is a flow chart showing the processing of the tempering management information of the U-picture. Fig. 16 is another explanatory diagram of the recording processing of the tempering management information of Fig. 11. Fig. 17 is a flow chart showing another processing for recording density change according to the first embodiment of the present invention. Fig. 18 is a flowchart showing the processing of the second embodiment of the recording density changing method of the present invention. Fig. 19 is an explanatory diagram of the content management table of Fig. 18. 41 1311749 Fig. 20 is a flowchart showing another process of the second embodiment of the recording density changing method of the present invention. Fig. 21 is still another flow chart of the second embodiment of the recording density changing method of the present invention. 5 Fig. 22 is a structural diagram of the tempering management area of Fig. 21. Fig. 23 is a view showing the tempering management area of another embodiment of the present invention. Figure 24 is a diagram showing the construction of another embodiment of the present invention. Fig. 25 is an explanatory view showing the first embodiment of the optical memory medium of the present invention. Fig. 26 is an explanatory view showing a second embodiment of the method of manufacturing an optical memory medium of the present invention. Figure 27 is a view showing a constitution of a film of an optical memory medium according to another embodiment of the present invention. 15 Figure 28 is a diagram showing the relationship between pits and phase change marks in the media of Fig. 27. Figure 29 is a graph showing the relationship between the intensity of the illumination light and the phase change mark in Fig. 27. Fig. 30 is a flowchart showing the processing of the third embodiment of the method for changing the recording density of the present invention. Figure 31 is a block diagram of a conventional optical memory medium. Figure 32 is an explanatory view of a conventional tempering process. 42 1311749 [Description of main component symbols] 4. . . DWDD disc 4 — 1... pit row 4 — 2··· Μ 0 signal row 4Α···Plastic substrate 4Β··· dielectric layer 4C...regeneration layer 4D...exchange layer 4Ε...recording layer 4F···dielectric layer 4G... metal protective layer 4Η". Resin layer 41...dielectric layer 4J...recording and reproducing layer 5···optical reading head 6·································· · Detector 14... polarized beam splitter 15 — 1·. Controller 15 - 2 · · · servo controller 15 - 2 Μ ... motor driver 15 - 2S ... servo actuated driver 16 ... for the objective lens 集 ... concentrator 18 ... motor 19 ... focus actuator 21 ... cylindrical mirror 22... Collecting mirror 25 - Bu servo detector 25 - 2... Detector 26... Wollaston 稜鏡 29... Adding arithmetic unit 30... Differential arithmetic unit 31... Differential arithmetic unit 34... Magnetic head driver 35· · Magnetic head 40... tempering management area 40-1... magneto-optical signal 40-2... pit signal 42...user area; data part 400···substrate 402...shore 404·. Groove portion 406...recording layer 410··· magneto-optical recording mark 412...beam spot 414...pit 416...beam spot 418...tempering treatment area 43

Claims (1)

Patent application scope: The optical sd memory medium ft' is at least light-receiving for recording and reproduction, and includes: a substrate having a groove and a bank formed by a physical shape change; and a recording layer 'based on the foregoing In the substrate, the groove or the land is separated by the light irradiation to separate the groove or the land, and rewritably has tempering management information indicating whether or not the tempering process for increasing the recording density is performed. 2. If you apply for a full-time job, the optical record of the 1 item is that the tempering management information is formed in the groove or the shore in the shape of a pit. An optical memory medium according to claim 1, wherein the tempering rule is to form the aforementioned recording layer of the groove or the bank. For example, the optical memory of the first item of the full-time division is characterized in that it has a Wei area and a user area in which the aforementioned tempering management information is formed. For example, an optical memory ship in which the first item is applied is characterized in that the recording layer is composed of a magneto-optical layer. The optical memory medium of the patent application scope is the content of the pit shape formed in the tempering region of the aforementioned bank or groove. - an optical hybrid "manufacturing green", the optical recording system uses at least light for recording and reproduction, and the manufacturing method includes the following steps: forming a base 1311749 having a groove and a bank formed by a change in physical shape The substrate forms a recording layer; and the recording layer is separated by the light or the bank by the light or the ground, and the tempering management information is rewritten to form a tempering management information, and the tempering management information indicates uselessness. To improve the recording density of the tempering place. The method of manufacturing an optical memory medium according to claim 7, wherein the step of forming the tempering management information is formed by a step of forming a pit shape on the groove or the bank. 9. The method of manufacturing an optical memory medium according to claim 7, wherein the step of forming the tempering management information is performed by the step of forming the recording layer formed on the groove or the bank. 10. The method of fabricating an optical memory medium according to claim 7, wherein the step of forming the substrate comprises the step of forming a pit shape in the tempering region of the bank or trench. 15 11. An optical memory device for recording and reproducing an optical memory medium using at least light, comprising: an optical reading head for reading an optical memory medium, the optical memory medium having a physical shape The groove and the bank and the recording layer formed by the change; and 20 controllers, according to the tempering management information read from the optical memory medium and displaying the presence or absence of tempering, the recording layer is irradiated by the light to the groove Separate or shore, and implement a tempering processor to increase the recording density. 12. The optical memory device of claim 11, wherein the optical read head of the aforementioned 45 1311749 reads the tempering management information before the groove or the land is formed in a pit shape. 13. The optical memory device of claim 11, wherein the optical pickup head reads the tempering management information formed on the recording layer of the groove or the land. 14. The optical memory device of claim 11, wherein the optical pickup is to read the optical memory medium* having a system region and a user region in which tempering management information is formed, and the controller is The aforementioned user 10 area is subjected to tempering processing according to the aforementioned tempering management information. 15. The optical memory device of claim 11, wherein the recording layer of the optical memory medium is formed by a magneto-optical layer. 16. The optical memory device of claim 11, wherein the optical pickup is adapted to read the shape of the pit formed in the tempering region of the bank or the 15 groove during the tempering process. 17. The optical memory device of claim 11, wherein the controller updates the tempering management information of the optical memory medium after the tempering process. 18. The optical memory device of claim 11, wherein the controller 20 determines the recording density of the user area of the optical memory medium with reference to the tempering management information of the optical memory medium. 19. The optical memory device of claim 18, wherein the controller is tempered by the tempering management information of the optical memory medium to indicate that the tempering is completed at a relatively high density to the optical memory medium 46 1311749 The user area performs recording and reproduction, and when the tempering management information of the optical memory medium indicates that the tempering is not completed, the user area of the optical memory medium is recorded and reproduced at a relatively low density. 20. The optical memory device of claim 11, wherein the controller 5 performs tempering of the user area of the optical memory medium when the tempering management information of the optical memory medium indicates that the tempering is not completed. deal with. 47 4 1i第5 0 5 0 2 2 11 (%) ¥^^*βορμ 5 ki ►-4 ▲ ▲, ♦, y / -4 οΟ 2 4 6 8 10 12 14 Recession intensity of pit (mW) 12/ 28