JP2007220294A - Optical disk drive, method of recording optical disk information, and optical disk medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk device that makes it possible to increase recordable capacity of an optical disk medium that can be recognized by a user side, and to provide a method of recording optical disk information and an optical disk medium used in the optical disk device. <P>SOLUTION: The optical disk medium includes a system area and a data area. The system area includes a test recording area where test recording is performed for setting an optimum recording condition for recording in the data area, a recording control information area where information necessary for recording user data in the data area is recorded, and a user data lead-in area that is necessary for playing back the user data recorded in the optical disk medium. Dummy data is recorded in part at the user data lead-in area side of the recording control information area as a guard area for preventing out-of-track when the data area is accessed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an optical disc apparatus, and more particularly to a recordable optical disc apparatus that records and reproduces data with a minute light spot and an optical disc medium used in the recordable optical disc apparatus.

  In the field of optical discs in which data is recorded / reproduced by a minute light spot, a CD-, which is an optical disc capable of recording data, following a read-only ROM (Read Only Memory) medium in which embossed data pit rows are formed in advance. R (Compact Disc-Recordable) and DVD-R (Digital Versatile Disc-Recordable) are widely used. There is also an optical disk medium called CD-RW (CD-ReWriteable) or DVD-RW (DVD-ReWriteable) that can rewrite recorded data. Here, optical disc media capable of recording data are collectively referred to as recordable optical disc media.

  In the recording type optical disc medium, a spiral groove track for tracking is formed on an optical disc substrate, and a multilayer recording layer made of an organic material or the like is formed thereon. Data is recorded by condensing a high-power laser beam on the recording layer and partially altering it to form recording pits. After recording, servo signals having substantially the same characteristics can be obtained with the same data format as that of the ROM medium on which the embossed data pit train is formed. Therefore, there is an advantage that reproduction can be easily performed even with a read-only drive device. .

  In the DVD-R, user data is converted into a format in which additional information such as a data ID such as an address and an error correction code is added, and is recorded on an optical disk medium as a series of continuous data. This continuously recorded format is the same as the DVD-ROM format.

  However, if the format is exactly the same as that of a DVD-ROM, recording can be performed only once. Therefore, a recording system called multi-session or multi-border that can add data several times is set. In this case, special data called a border area in which data position information and the like are recorded after user data is recorded, and then user data is further recorded. The playback device plays back user data using this data position information.

  As shown in FIG. 3, the recordable optical disk medium 6 has a spiral recording track 24. The recording track 24 includes a system area 22, a data area 23, and a lead-out area (not shown) concentrically from the inside.

  The system area 22 records system information necessary for a recording operation and a reproducing operation including information on a disc and information on a user recorded track. In this area, an area for recording information for controlling the disc and an area for performing a recording condition test are also secured.

  The lead-out area is an area indicating the end of the disc. When the lead-out area is detected, the end of the optical disk medium is recognized.

  The data area 23 is outside the system area 22 and records user data. In the data area 23, a spiral recording track 24 is formed.

  These data structures can be expressed in one dimension as shown in FIG. FIG. 4 shows the arrangement of the areas on the disk surface along the radial direction, with the left side being the inner circumferential direction of the disk and the right side being the outer circumferential direction. The system area 22 on the inner peripheral side is an area in which system control information necessary for recording and reproduction by the optical disc apparatus, data arrangement information on the optical disc medium, and the like are recorded. The system area 22 can be roughly divided into three areas: a user data lead-in area 28, a recording control information area 27, and a test recording area 26.

  The user data lead-in area 28 is arranged closest to the data area 23 side. In this area, system control information is recorded which is necessary when the read-only optical disc apparatus mainly reproduces the recorded recordable optical disc medium.

  The recording control information area 27 is information mainly used by the recording type device to record user data in the data area 23. Information such as the next recordable position in the data area 23 and the usage status of the test recording area 26. Is described. As the amount recorded in the data area 23 increases, the information in this area is also updated sequentially. Therefore, new information can be written in predetermined units from the inner circumference side toward the outer circumference side.

  The test recording area 26 is an area for performing test recording for searching for optimum conditions for recording. In order to optimize the recording conditions in the data area 23, trial recording is performed by changing the power, the recording waveform, and the like. The test recording area may be used in any order, but in general, it is often used from the outer peripheral side.

  FIG. 6 shows an outline of an operation for recording user data on an optical disk medium. When recording user data, first, a recording preparation process (S11) is performed. In the recording preparation process, the test recording area 26 is used to change the writing power or change the waveform to perform test recording to obtain an optimum recording condition for recording user data. The optimum recording condition is set as a recording condition for recording in the data area 23 (step S11).

  When the recording conditions are set, a user data recording process for sequentially recording desired user data in the data area 23 is performed (step S12).

  When the user data has been recorded, the recording operation is completed by a recording end process (S13). The recording end process is sometimes called finalization, and is a process necessary to make it possible to reproduce user data even on a reproduction-only optical disk device. In the read-only optical disk apparatus, only the area where the recording pits are continuously formed can be accessed stably, and therefore, this is a process of forming continuous recording pits having a length that can be stably accessed before and after the user data.

  After performing the recording end process, as shown in FIG. 5, a portion where the recording pit is formed and a portion where the recording pit is not formed are mixed. The data area 23 includes a recorded data area 23a and an unrecorded data area 23b.

  When the amount of data recorded in the data area 23 is small or the number of additional recordings is small, the recording control information area 27 and the test recording area 26 are recorded in the recorded recording control information area 27a and the recorded test recording area 26a. The unrecorded recording control information area 27b and the unrecorded test recording area 26b are not recorded.

  In the user data lead-in area 28, control information necessary for a reproducing apparatus for the recorded optical disk is recorded. The amount of information is not so much. However, the user data lead-in area 28 also serves as a guard area 30 for preventing the off-track when the data area 23 is accessed. Therefore, an area having a radial width of 100 μm or more is required as the recording width. In the actual recording end process on the optical disc, a guard area is often additionally recorded outside the recorded user data. However, this process is not directly related to the operation of the present invention. Not specified.

  Since the read-only optical disk apparatus generally detects a track error signal from a recorded pit, it cannot access an unrecorded area. Therefore, the user data lead-in area 28a and the recorded data area 23a forming a series of recording pit rows are areas that can be reproduced by any optical disc apparatus.

JP 2002-208139 A

  The system area is not clearly recognized by the user who records or reads data, but is an indispensable area for the optical disc apparatus to perform recording and reproduction. Therefore, the recordable capacity of the optical disk medium that can be recognized by the user is the capacity of the data area. For an optical disk medium that is expected by the user to have as much capacity as possible, it is desirable that this system area be as small as possible. Become.

  However, as described above, in order to secure a large number of additional recordings and to ensure stability in the read-only optical disk device, any area in the system area cannot be reduced unnecessarily.

  An object of the present invention is to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used in the optical disc apparatus that can increase the recordable capacity of the optical disc medium that can be recognized by the user.

  Another object of the present invention is to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used in the optical disc apparatus that can ensure a large number of additional recordings.

  Furthermore, another object of the present invention is to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used in the optical disc apparatus, capable of good recording over the entire surface of the optical disc medium.

  Another object of the present invention is to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used in the optical disc apparatus, which can perform recording optimized for areas with different recording speeds. .

  Hereinafter, means for solving the problem will be described using the numbers and symbols used in [Best Mode for Carrying Out the Invention]. These numbers and symbols are added to clarify the correspondence between the description of [Claims] and [Best Mode for Carrying Out the Invention]. However, these numbers and symbols should not be used for the interpretation of the technical scope of the invention described in [Claims].

  In an aspect of the present invention, the optical disc medium (6) includes a system area (22) and a data area (23). The system area (22) records test data for trial recording in order to set optimum recording conditions for recording in the data area (23), and user data in the data area (23). A recording control information area (27) in which information necessary for recording is recorded, and a user data lead-in area (28) necessary for reproducing the optical disk medium (6) on which the user data is recorded. Yes. Dummy data is recorded in a part of the recording control information area (27) on the user data lead-in area (28) side as a guard area (30) for preventing a track off when accessing the data area (23). The

  In the optical disk medium (6) of the present invention, the dummy data is recorded until the radial width of the recorded portion is equal to or greater than a predetermined value.

  In another aspect of the present invention, the optical disc medium (6) includes a system area (22) and a data area (23). The system area (22) records test data for trial recording in order to set optimum recording conditions for recording in the data area (23), and user data in the data area (23). A recording control information area (27) in which information necessary for recording is recorded, and a user data lead-in area (28) necessary for reproducing the optical disk medium (6) on which the user data is recorded. ing. An extended recording control area (43) in which information necessary for recording the user data is recorded in the data area (23) is provided in the data area (23).

  The capacity of the extended recording control information area (43) of the optical disk medium of the present invention increases or decreases according to the radial position where the extended recording control information area (43) is set.

  The capacity of the extended recording control information area (43) of the optical disk medium of the present invention increases or decreases according to the capacity of the unrecorded portion in the data area (23) where data can be recorded.

  The capacity of the extended recording control information area (43) of the optical disk medium of the present invention decreases stepwise toward the outer peripheral side.

  The capacity of the extended recording control information area (43) of the optical disk medium of the present invention changes in three stages.

  In the optical disk medium of the present invention, when the number of times of information recording recorded in the recording control information area (27) reaches a preset number of times, information necessary for recording the user data in the data area (23) is stored. The extended recording control information area (43) to be recorded is newly set.

  The position where the extended recording control information area (43) of the optical disk medium of the present invention is provided is the outermost peripheral side among a plurality of scheduled recording areas secured when the user data is recorded in the data area (23). Is set when the scheduled recording area is closed. The scheduled recording area is called an R area (R-Zone), and a plurality of scheduled recording areas are secured when user data is recorded. Of these, the scheduled recording area provided on the outermost periphery side is open until the recording of user data is completed. When the recording of the user data is completed, the scheduled recording area provided on the outermost side is closed.

  The information recorded in the recording control information area (27) or the extended recording control information area (43) of the optical disk medium of the present invention includes address information indicating the position of the extended recording control information area (43).

  The optical disk medium of the present invention is trial-recorded in the extended test recording area (42) provided in the data area (23).

  In the optical disk medium of the present invention, the extended test recording area (42) is identified by a flag recorded in a flag area further provided in the data area (23).

  In another aspect of the present invention, the optical disc medium (6) includes a system area (22) and a data area (23). The system area (22) includes a test recording area (26) for trial recording in order to set optimum recording conditions for recording in the data area, and information necessary for recording user data in the data area. Is recorded, and a user data lead-in area (28) necessary for reproducing the optical disk medium (6) on which the user data is recorded is provided. Part of the information recorded in the recording control information area (27) is recorded in a prepit (29) arranged on the inner peripheral side of the system area (22).

  In the optical disk medium (6) of the present invention, the prepit (29) is arranged separately from the recording track (24) including the system area (22) and the data area (23).

  The pre-pit (29) of the optical disk medium (6) of the present invention is formed in advance when the optical disk medium (6) is manufactured.

  The optical disk device (4) of the present invention reads information recorded in the pre-pit (29) of the optical disk medium (6).

  From the viewpoint of the present invention, the optical disk device (4) drives the optical disk medium (6). The optical disk medium (6) includes a system area (22) and a data area (23). The system area (22) records test data for trial recording in order to set optimum recording conditions for recording in the data area (23), and user data in the data area (23). A recording control information area (27) in which information necessary for recording is recorded, and a user data lead-in area (28) necessary for reproducing the optical disk medium (6) on which the user data is recorded. The optical disk device (4) is provided on the user data lead-in area (28) side of the recording control information area (27) as a guard area (30) for preventing the off-track when accessing the data area (23). Record dummy data in the section.

  The optical disc apparatus (4) of the present invention records the dummy data until the radial width of the recorded portion becomes a predetermined value or more.

  In another aspect of the present invention, the optical disk device (4) drives an optical disk medium (6) including a system area (22) and a data area (23). The system area (22) records test data for trial recording in order to set optimum recording conditions for recording in the data area (23), and user data in the data area (23). A recording control information area (27) in which recording control information necessary for recording is recorded, and a user data lead-in area (28) necessary for reproducing the optical disk medium (6) on which the user data is recorded. Is provided. The recording control information is recorded in the extended recording control information area (43) set in the data area (23).

  The optical disc apparatus (4) of the present invention performs recording by increasing / decreasing the capacity of the extended recording control information area (43) according to the radial position where the extended recording control information area (43) is set.

  The optical disc apparatus (4) of the present invention performs recording by increasing / decreasing the capacity of the extended recording control information area (43) according to the capacity of the unrecorded portion of the data area (23) where data can be recorded. To do.

  The optical disc apparatus (4) of the present invention performs recording by decreasing the capacity of the extended recording control information area (43) stepwise toward the outer periphery.

  The optical disc apparatus (4) of the present invention has the extended recording control information area for recording the recording control information when the number of times of information recording to the recording control information area (27) reaches a preset number. (43) is set in the data area (23).

  In the optical disk apparatus (4) of the present invention, when the recording scheduled area provided on the outermost side among the plurality of recording scheduled areas secured when the user data is recorded in the data area (43) is closed. In addition, when the number of times of information recording is a preset number of times, the host device (2) is notified that the set number of times has been reached.

  The optical disc apparatus (4) of the present invention receives the instruction from the host apparatus (2) and sets the extended recording control information area (43) in the data area (23).

  The optical disc apparatus (4) of the present invention notifies the host apparatus (2) that the set number of times has been reached and sets the extended recording control information area (43) in the data area (23).

  The optical disc apparatus (4) of the present invention records address information indicating the position of the extended recording control information area (43) in the recording control information area (27) or the extended recording control information area (43).

  The optical disk apparatus of the present invention performs trial recording in the extended test recording area (42) provided in the data area (23).

  In the optical disk apparatus of the present invention, the extended test recording area (42) is identified by a flag recorded in a flag area further provided in the data area (23).

  In an aspect of the present invention, the optical disc information recording method is a method of recording on an optical disc medium having a system area (22) and a data area (23). The system area (22) records test data for trial recording in order to set optimum recording conditions for recording in the data area (23), and user data in the data area (23). A recording control information area (27) in which information necessary for recording is recorded, and a user data lead-in area (28) necessary for reproducing the optical disk medium (6) on which the user data is recorded. Yes. Dummy data is recorded in a part of the recording control information area (27) on the user data lead-in area (28) side as a guard area (30) for preventing a track deviation when accessing the data area (23). A guard area recording step.

  In the guard recording step of the optical disc information recording method of the present invention, the dummy data is recorded until the radial width of the recorded portion becomes a predetermined value or more.

  In another aspect of the present invention, the optical disc information recording method is a method of recording on an optical disc medium (6) comprising a system area (22) and a data area (23). The system area (22) records test data for trial recording in order to set optimum recording conditions for recording in the data area (23), and user data in the data area (23). A recording control information area (27) in which information necessary for recording is recorded, and a user data lead-in area (28) necessary for reproducing the optical disk medium (6) on which the user data is recorded. . An extended control information recording step for recording information necessary for recording user data in the data area (23) in the data area (23);

  In the optical disc information recording method of the present invention, it is necessary to record the user data in the data area (23) when the number of times of information recording recorded in the recording control information area (27) reaches a preset number. The extended recording control information area where new information is recorded is newly reserved in the data area (23).

  The optical disc information recording method of the present invention further includes a data area trial recording step for trial recording in the extended test recording area (42) provided in the data area (23).

  The optical disc information recording method of the present invention further comprises an extended test recording area identifying step for identifying the extended test recording area (42) by a flag recorded in a flag area further provided in the data area (23).

  According to the present invention, it is possible to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used in the optical disc apparatus that can efficiently use the optical disc recording surface for data recording without causing any trouble in system operation.

  In addition, according to the present invention, it is possible to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used in the optical disc apparatus that can increase the recordable capacity of the optical disc medium that can be recognized by the user.

  Furthermore, according to the present invention, it is possible to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used in the optical disc apparatus that can ensure a large number of additional recordings.

  In addition, according to the present invention, it is possible to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used in the optical disc apparatus that can perform good recording over the entire surface of the optical disc medium.

  Furthermore, according to the present invention, it is possible to provide an optical disc apparatus, an optical disc information recording method, and an optical disc medium used for the optical disc apparatus, which can perform recording even in areas with different recording speeds.

  Hereinafter, an optical disk device, an optical disk medium, and a data recording system using the same will be described with reference to the accompanying drawings.

  FIG. 1 is a diagram showing a configuration of a data recording system of the present invention. The optical disk device 4 is set with an optical disk medium 6 such as a DVD disk, records data on the optical disk medium 6 in accordance with a command from the host apparatus 2, and reads data from the optical disk medium. Further, the optical disc apparatus 4 executes a training process for confirming and adjusting the write condition in response to a command from the host apparatus 2 before starting the writing.

  FIG. 2 shows the configuration of the optical disc apparatus 4 according to the first embodiment of the present invention. The configuration of the optical disc apparatus will be described with reference to FIG. The optical disc apparatus 4 according to the first embodiment includes a CPU 10, an access unit 12, a disc controller 14, an encoder 16, a decoder 18, and a rotation drive system 20.

  The CPU 10 controls the overall operation of the optical disc apparatus 4. The CPU 10 exchanges commands, notifications, and data with the host device 2 and controls the disk controller 14, the encoder 16, and the decoder 18. Also, necessary calculations are performed.

  The access unit 12 writes data to the optical disk medium 6 and reads data from the optical disk medium 6 using laser light. Access unit 12 is well known to those skilled in the art. The rotation drive system 20 drives the optical disk medium 6 to rotate in response to an input command when the optical disk medium 6 is set.

  The disk controller 14 controls the access unit 12 and the rotation drive system 20 so as to perform rotation, laser control, and data reading / writing with respect to the optical disk medium 6. The disk controller 14 drives the rotation drive system 20 so that the optical disk medium 6 is rotated in accordance with a command from the CPU 10. Further, the disk controller 14 controls the position of the access unit 12 in accordance with a command from the CPU 10. The operation of the access unit 12 in the write mode and the read mode is controlled. In the write mode, the disk controller 14 controls the access unit 12 to write the data supplied from the encoder 16 to the optical disk medium 6. The access unit 12 emits laser light and writes data to the optical disc medium 6. In the read mode, the disk controller 14 controls the access unit 12 to read data from the optical disk medium 6. The access unit 12 emits laser light and reads data from the optical disc medium 6. The read data is supplied to the decoder 18 through the disk controller 14.

  The encoder 16 encodes user data in response to a command from the CPU 10, and generates write data in units of ECC blocks (16 sectors) for a DVD, for example. The generated write data is supplied to the disk controller 14.

  The decoder 18 decodes data read from the optical disc medium 6 in units of ECC blocks (16 sectors) in response to a command from the CPU 10. A next-generation DVD in which the ECC block is expanded to 32 sectors has been proposed.

  In a recordable optical disk medium 6 such as a DVD-R or DVD-RW, a spiral groove track for tracking is formed on an optical disk substrate. A multilayer recording layer made of an organic material or the like is formed thereon. High-power laser light is condensed on this recording layer and partially altered to form recording pits, and data is recorded. After recording, the data format is the same as that of an embossed optical disk ROM medium (DVD-ROM or the like). In addition, since a servo signal having substantially the same characteristics as that of the optical disk ROM medium can be obtained, there is an advantage that it can be easily reproduced by a reproduction-only drive device.

  As shown in FIG. 3, the recordable optical disk medium 6 includes a system area 22, a data area 23, and a lead-out area (not shown) concentrically from the inside.

  The system area 22 records system information necessary for a recording operation and a reproducing operation including information on a disc and information on a user recorded track. In this area, an area for recording information for controlling the disc and an area for performing a recording condition test are also secured.

  The lead-out area is an area indicating the end of the disc. When the lead-out area is detected, the end of the optical disk medium is recognized.

  The data area 23 is outside the system area 22 and records user data. In the data area 23, a spiral recording track 24 is formed.

  These data structures can be expressed in one dimension as shown in FIG. FIG. 4 shows the arrangement of the areas on the disk surface along the radial direction, with the left side being the inner circumferential direction of the disk and the right side being the outer circumferential direction. The system area 22 on the inner circumference side is an area in which system control information necessary for recording and reproduction by the optical disc apparatus, data arrangement information on the optical disc medium, and the like are recorded. The system area 22 can be roughly divided into three areas: a user data lead-in area 28, a recording control information area 27, and a test recording area 26.

  The user data lead-in area 28 is arranged closest to the data area 23 side. In this area, system control information necessary for reproducing a recorded optical disc medium that has been recorded by a reproduction-only optical disc apparatus is recorded.

  The recording control information area 27 is information mainly used by the recording type device to record user data in the data area 23. Information such as the next recordable position in the data area 23 and the usage status of the test recording area 26. Is described. As the amount recorded in the data area 23 increases, the information in this area is also updated sequentially. Therefore, new information can be written in predetermined units from the inner circumference side toward the outer circumference side.

  The test recording area 26 is an area for performing test recording for searching for optimum conditions for recording. In order to optimize the recording conditions in the data area 23, trial recording is performed by changing the power, the recording waveform, and the like. The test recording area may be used in any order, but in general, it is often used from the outer peripheral side.

(First embodiment)
The first embodiment will be described with reference to FIGS. In the first embodiment, a part of the guard area 30 that the user data lead-in area 28 has conventionally used is also used as the recording control information area 27, and the user data lead-in area 28 is reduced to the minimum necessary. The data area 23 is enlarged.

  There is not much system control information recorded in the user data lead-in area 28. In the conventional optical disk, information necessary for the reproduction operation is recorded in the vicinity of the data area, and in the remaining area, the same information is repeatedly recorded a plurality of times, or dummy data is recorded to secure the guard area 30. ing.

  FIG. 7 is a diagram showing a state after the user data lead-in area 28 is reduced to the minimum necessary and user data is recorded. FIG. 7A shows a case where a relatively small amount of data is recorded, and FIG. 7B shows a case where a relatively large amount of data is recorded.

  In FIG. 7A, user data is recorded in the data area 23a. Therefore, the data area 23b remains as an unrecorded area. In the user data lead-in area 28, after user data is recorded, information necessary for the reproduction operation is recorded. When recording user data is recorded, the test recording area 26a is used for obtaining the optimum recording condition, and the unrecorded test recording area 26b is used for obtaining the optimum condition for the next recording. When user data is recorded in the data area 23, the recording control information area 27a is used to record the control information, and a recording state is entered. The recording control information area 27 c remains as an unrecorded area, while the recording control information area 27 d is recorded with dummy data and becomes a part of the guard area 30 together with the read area 28.

  FIG. 7B shows a case where a relatively large amount of data is recorded, and the user data is recorded and enlarged in the data area 23a. Accordingly, a test recording area 26a for obtaining recording conditions and a recording control information area 27a for recording control information are also expanded. At this time, the guard area 30 includes a recorded recording control information area 27a. Therefore, as the guard area 30, it is only necessary to add the unrecorded recording control information area 27e to the recorded recording control information area 27a and the user data lead-in area 28. Accordingly, the guard area 30 is secured by recording the dummy data in the recording control information area 27e that remains unrecorded.

  With reference to FIG. 8, the operation of using a part of the recording control information area 27 as the guard area 30 will be described.

  When the optical disk medium is loaded into the optical disk device, the latest information is read from the recording control information area 27. If some user data has already been recorded, control is performed to perform additional recording after the last recorded position (step S31).

  Next, in order to optimize the recording conditions in the data area 23, test recording is performed using the test recording area 26 while changing the power, the recording waveform, and the like. The optimum recording condition is obtained from the result of the trial recording, and the recording condition is set. In addition, a counter for measuring the amount of data to be recorded is reset. When a user data recording command is received from the upper host connected to the optical disk apparatus, data is recorded (step S32).

  User data is additionally recorded in the data area 23. The recorded user data is counted by a counter (step S34).

  It is determined whether or not the additional recording amount counted by the counter has reached a certain value (step S36). If it is greater than or equal to a certain value (step S36-YES), the latest control information is additionally recorded in the recording control information area 27 in order to update the information in the recording control information area 27, and the counter is reset (step S38).

  Note that the information in the recording control information area 27 is not only updated by this counter, but also when the optical disk device receives a command for securing a certain amount of the data area 23 from the higher-level host device, or a command for ejecting the optical disk medium. You may also go when you receive it. Control is performed so that the latest recording status is always recorded in this area.

  The process is repeated from step S34 until there is no user data to be recorded (end of recording) (step S39). In this way, user data is recorded.

  When the user data recording is completed, a recording end processing command is received, the recording end processing is performed, and control information such as the recording position of the user data required for reproduction on the reproduction-only optical disc apparatus is stored in the user data lead-in area. 28 (step S41).

  Next, it is determined whether or not the guard area 30 is secured (step S42). If all of the recording control information area 27 is recorded and the user data lead-in area 28 is continuously recorded (No in step S42), the guard area 30 is secured, and further recording is performed. Absent.

  When an unrecorded area remains in the recording control information area 27, as shown in FIG. 7, the user data lead-in area 28 is insufficient as the guard area 30, so the user in the recording control information area 27 Dummy data is recorded from the data lead-in area 28 side, and the guard area 30 is secured. As shown in FIG. 7A, if the recorded recording control information area 27a is small, the user data lead-in area 28 is ensured by recording dummy data in the recording control information area 27d. . Further, as shown in FIG. 7B, if the recorded recording control information area 27a is large and includes a part of the guard area 30, the recorded recording control information area 27a is recorded from the user data lead-in area 28. Dummy data is recorded in the recording control information area 27e up to. By recording dummy data in the recording control information area 27e, the recorded area is connected from the user data lead-in area 28 to the recording control information area 27, and the guard area 30 is secured. Note that the recording order of the user data lead-in area 28 and the recording control information area 27 may be reversed (step S44).

  Note that when an optical disk medium eject command is received from the host device at a stage before the recording end process, the disk is ejected without performing the recording end process. Therefore, additional recording can be performed by loading the optical disk medium into the apparatus again. Further, if a portion for recording dummy data as a guard area of 50 to 100 [mu] m is provided adjacent to the outer periphery of the recorded data area 23a, it is possible to further ensure the stability of reproduction. This guard area can be considered as a border area.

  As described above, the guard area 30 can be secured and recorded in a state where the user data lead-in area 28 is reduced to a necessary minimum. For example, it becomes possible to compress the area width that is required to be 100 μm or more to several tens of μm or less. The reduced area can be allocated to the data area to increase the capacity available to the user, and can be allocated to the recording control information area and the test recording area to increase the number of times that additional recording can be performed.

  In the recording end process, a recording pit is formed by dummy data not only in the user data lead-in area 28 as the guard area 30 but also in a part of the data area side of the recording control information area 27. By performing such processing, it is possible to ensure the stability of access in the read-only optical disc apparatus as in the conventional case.

  Furthermore, before the recording end process, if the recording control information area 27 has already been recorded beyond the boundary that needs to be secured as a guard area, the dummy data must be recorded in the recording end process. It can be seen that this is the recording control information area 27e, and a continuous recording pit area width can be secured only by recording in the recording control information area 27e. In this case, the amount of dummy data recorded in the recording end process is reduced, and the processing time can be shortened.

  Further, even when the total amount of the recording control information area 27 and the user data lead-in area 28 is equal to the required guard area 30, the entire recording control information area also functions as a guard area. Of course.

  In addition, the recording end process mentioned here may be a finalize process that prohibits further recording in the case of the specification such as DVD-R, and additional writing is possible, but for the time being in a read-only optical disc device. There is also a border closing process in a multi-border structure that enables reproduction.

(Second Embodiment)
A second embodiment will be described with reference to FIGS. 9 and 10. In the second embodiment, the recording control information area 27 is reduced. In this case, if additional recording is repeatedly performed, this area becomes insufficient.However, in this case, there is still a recordable portion in the data area. A new border area is set, and an extended recording control information area is provided therein. If the recording control information area 27 is reduced and the same function as before is satisfied, an effect such as expansion of the data area 23 can be obtained.

  With reference to FIG. 9, the arrangement of the regions will be described. User data is recorded in the data area 23 a and information is also recorded in the test recording area 26 a and the recording control information area 27. When information is recorded on the entire surface of the recording control information area 27, a border area as a delimiter is newly set outside the area where user data is recorded. An extended recording control information area 43 is provided in the newly set border area. Further, when additional user data is to be recorded, it is recorded outside this border (data area 44), and the recording control information is recorded in the extended recording control information area 43 of this border area. In some cases, the border area is formed only from the extended recording control information area.

  In the recording end process, the unrecorded portion 41 remaining in the border area is also filled with dummy recording pits to form a series of recording pit areas. Of course, if an unrecorded area remains in the extended recording control information area 43, it is filled with dummy recording pits so that a series of recording pits are formed. If the position information of this border area or the position information of the extended recording control information area is recorded as the latest information of the recording control information area of the system area, the optical disc apparatus detects the latest information from the recording control information area of the border area. It becomes possible to do. In the border area, information such as a position for recording the next user data may be recorded.

  The conventional CD-R and DVD-R also have a function called multi-session or multi-border, and some uses are used in which user data is separated by a border that records system control information. Can be easily combined. This has the advantage that the recording control information area can be expanded and used as long as a recordable area remains in the data area.

  Of course, a new border zone can be formed in the conventional multi-border configuration regardless of the remaining amount of the recording control information area. In the multi-border configuration according to the prior art, in order to enable playback on the playback-only optical disc apparatus, a recording end process for closing the previous border is performed. In this case, dummy information necessary as a guard area is recorded in the remaining amount of the recording control information area or the extended recording control information area used so far, and in the subsequent user data recording, the newly set border zone By using the extended recording control information area, the effects of the present invention can be easily obtained.

  The recording operation arranged in this way will be described with reference to FIG. When the optical disk medium is loaded into the optical disk device, the latest information is read from the recording control information area 27. If some user data has already been recorded, control is performed to perform additional recording after the final recorded position (step S51).

  Next, in order to optimize the recording conditions in the data area 23, test recording is performed using the test recording area 26 while changing the power, the recording waveform, and the like. The trial-recorded area is indicated by 26a, and the area 26a is enlarged each time trial recording is performed. The optimum recording condition is obtained from the result of the trial recording, and the recording condition is set. In addition, a counter for measuring the amount of data to be recorded is reset. When a user data recording command is received from the upper host connected to the optical disk device, data is recorded (step S52).

  User data is additionally recorded in the data area 23. The recorded user data is counted by a counter (step S55).

  It is determined whether or not the additional recording amount counted by the counter has reached a certain value (step S57). If the value is equal to or greater than a certain value (step S57-YES), the latest control information is additionally recorded in the recording control information area 27 in order to update the information in the recording control information area 27, and the counter is reset (step S59).

  Note that the information in the recording control information area 27 is not only updated by this counter, but also when the optical disk device receives a command for securing a certain amount of the data area 23 from the higher-level host device, or a command for ejecting the optical disk medium. You may also go when you receive it. Control is performed so that the latest recording status is always recorded in this area.

  Since the record control information area 27 that can be recorded decreases due to the update of the information, it is determined whether there is still a recordable area in the record control information area 27 (step S61). When the remaining capacity of the recording control information area 27 becomes a predetermined value or less (step S61-NO), a border area is newly set immediately after the user data in the previously recorded area 23a of the data area 23. The position of the border area is recorded in the recording control information area 27 as the latest information (step S62). In the following additional recording of user data, the latest system control information is additionally described in the recording control information area 43 in the border area. Further, when the recording control information area 43 in the border area becomes full, new border areas can be sequentially added to the data area 46.

  The process is repeated from step S55 until there is no user data to be recorded (end of recording) (step S65). In this way, user data is recorded.

  When the user data recording is completed, a recording end processing command is received, the recording end processing is performed, and control information such as the recording position of the user data required for reproduction on the reproduction-only optical disc apparatus is stored in the user data lead-in area. 28. If there is a border area, recording is performed in an unrecorded area of the border area, and the process ends (step S68). In the state where the border area is formed, the reproduction optical disk apparatus may be able to reproduce the user data on the inner circumference side. In this case, the user data lead-in area 28 is also recorded when the border area is formed. Further, if a portion for recording dummy data as a guard area of 50 to 100 [mu] m is provided adjacent to the outer periphery of the recorded data area 23a, it is possible to further ensure the stability of reproduction. This guard area can be considered as a border area. This is a configuration including a multi-border configuration function in the conventional DVD-R.

  In this way, recording that effectively utilizes the system area becomes possible. In addition, the inventions described in the first and second embodiments can be applied independently or can be used in combination.

(Third embodiment)
A third embodiment will be described with reference to FIGS. 11 and 12. In the third embodiment, a test recording area 26 is provided in this border. By distributing the test recording area 26 to the data area 23, trial recording can be performed in the data area 23 where data is actually recorded, so that more optimal recording conditions can be obtained. In the third embodiment, a test recording area 42 is provided in the border set in the second embodiment.

  The arrangement of the areas will be described with reference to FIG. User data is recorded in the data area 23 a and information is also recorded in the test recording area 26 and the recording control information area 27. When there is no more area that can be additionally recorded in the test recording area 26 and the recording control information area 27, a border area that becomes a delimiter is newly set outside the area where the user data is recorded. A test recording area 42 and an extended recording control information area 43 are provided in the newly set border area. Further, when additionally recording user data, the optimum recording condition is obtained using the test recording area 42 in the border. Based on the optimum recording condition, user data is additionally recorded in the data area 44 outside the border. The recording control information when additionally recorded in the data area 44 is recorded in the extended recording control information area 43 of this border area.

  In the recording end process, the unrecorded portion 41 remaining in the border area is also filled with dummy recording pits to form a series of recording pit areas. In addition, since the test recorded data may not be reproduced satisfactorily including the address information, it is necessary to identify the test recording area and skip it during reproduction. The test recording area can be identified by providing a flag indicating the test recording area in the recording block or storing an address table indicating the position of the test recording area in the border. A method in which a flag is provided in the recording block and skipped at the time of reproduction is preferable because the degree of freedom in setting the border position is large.

  The operation when the test recording area is provided in this border will be described with reference to FIG. When the optical disk medium is loaded into the optical disk device, the latest information is read from the recording control information area 27. If some user data has already been recorded, control is performed to perform additional recording after the last recorded position (step S71).

  Next, in order to optimize the recording conditions in the data area 23, test recording is performed using the test recording area 26 while changing the power, the recording waveform, and the like. The optimum recording condition is obtained from the result of the trial recording, and the recording condition is set. In addition, a counter for measuring the amount of data to be recorded is reset. When a user data recording command is received from the upper host connected to the optical disk device, data is recorded (step S72).

  User data is additionally recorded in the data area 23. The recorded user data is counted by a counter (step S74).

  It is determined whether or not the additional recording amount counted by the counter has reached a certain value (step S76). If the value is equal to or greater than the predetermined value (step S76-YES), the latest control information is additionally recorded in the recording control information area 27 in order to update the information in the recording control information area 27, and the counter is reset (step S77).

  Note that the information in the recording control information area 27 is not only updated by this counter, but also when the optical disk device receives a command for securing a certain amount of the data area 23 from the higher-level host device, or a command for ejecting the optical disk medium. It is also performed when received. Control is performed so that the latest recording status is always recorded in this area.

  Since the record control information area 27 that can be recorded decreases due to the update of the information, it is determined whether there is still a recordable area in the record control information area 27. It is preferable to determine the remaining amount of the test recording area 26 as well, but here the determination is based on the remaining capacity of the recording control information area 27 (step S79). When the remaining capacity of the recording control information area 27 becomes equal to or less than a predetermined value (step S79-NO), a border area is newly set immediately after the user data in the previously recorded area 23a of the data area 23 (step S81). ). Since new recording starts from the position of the border area, a test recording area 42 provided in the border area is used to obtain an optimum recording condition for this area. When the optimum recording condition is obtained using the test recording area 42, the recording condition is set (step S82). The position of this border area is recorded in the recording control information area 27 as the latest information (step S83). In the following additional recording of user data, the latest system control information is additionally described in the recording control information area 43 in the border area. Further, when the recording control information area 43 in the border area becomes full, new border areas can be sequentially added to the data area 46.

  The process is repeated from step S74 until there is no user data to be recorded (end of recording) (step S85). In this way, user data is recorded.

  When the user data recording is completed, a recording end processing command is received, the recording end processing is performed, and control information such as the recording position of the user data required for reproduction on the reproduction-only optical disc apparatus is stored in the user data lead-in area. 28. If there is a border area, recording is performed in an unrecorded area of the border area, and the process ends (step S87).

  In this way, recording that effectively utilizes the system area becomes possible. Furthermore, user data can be recorded based on more optimal recording conditions.

  Further, as an optical disk medium to which the method described in the embodiments is applied, an unrecorded optical disk medium in which nothing is recorded can be used.

  As described above, the case where the next generation blue semiconductor laser light source is used as a recording type optical disk medium will be described with respect to the effect of expanding the user data recording capacity by reducing the system area 22 and using it as the data area 23.

  It has been reported that an optical disk medium having the same size as a DVD has a track pitch of 0.4 μm and a data bit density of 0.153 μm. If the radius is 24.1 mm to 58.0 mm, the user data capacity of about 15 Gbytes can be realized with an encoding efficiency of 85%. If the width of the recording pits to be formed in the recording end process on the inner circumference side is about 100 μm, a capacity of 26 Mbytes is consumed if this width is allocated to the user data lead-in area. Since the system control information actually required for reproduction is 1 Mbyte or less, there is no problem in the information amount even if it is reduced to about 10 μm. If 200 μm is secured as the inner recording control information area, a capacity of 52 Mbytes can be obtained, and even if the unit of control information update is 64 kbytes, it can be updated 800 times or more. In the recording end process, a dummy recording pit of 100 μm may be formed by combining 10 μm of the user data lead-in area and 90 μm of one part of the recording control information area.

(Fourth embodiment)
On the other hand, if system information can be transmitted from an optical disk medium to a recordable optical disk apparatus, an optimum system information processing method can be set for each optical disk medium. In the fourth embodiment, an optical disk medium will be described.

  As shown in FIG. 13B, the optical disk medium of the fourth embodiment is provided with a pre-pit area on the innermost periphery side of the system area and records a part of the system information. The recording track 24 includes a data area 23, a test recording area 26 that constitutes the system area 22, a recording control information area 27, a user data lead-in area 28, and a prepit area 29. In this pre-pit area 29, the area position, processing method, etc. can be described in advance. Further, there is an advantage that information for copyright management that cannot be set by the user can be recorded.

  Such pre-pits can be set anywhere in the system area, but the conditions for forming recordable groove-like tracks on the substrate and the conditions for forming pre-pits are different, so they should be formed as continuous tracks. Can be difficult. In that case, as shown in FIG. 13A, by disposing the pre-pit area 29 independently on the inner peripheral side, an area without a track can be formed between them, and a practical arrangement is realized. it can.

(Fifth embodiment)
A fifth embodiment will be described with reference to FIGS. 14 to 16. In the fifth embodiment, the setting timing of the extended recording control information area and the capacity of the extended recording control information area will be mainly described.

  FIG. 14 shows a part of the data area 23. In the data area 23, user data is recorded for each area called a scheduled recording area (R-Zone). As shown in FIG. 14A, scheduled recording areas 51 and 52 are set in the data area 23, and user data has already been recorded. Further, it is assumed that new data is recorded in the area 53 of the data area. At this time, since the recording end position is not set, the recording area after the recording end position in the data area 52 is in an unrecorded state. That is, the area 55 does not yet exist, and the end position of the area 53 has not been determined. A recording scheduled area is set here. As the scheduled recording area, a plurality of areas can be set at one time. As shown in FIG. 14C, three scheduled recording areas of the first area RZ1, the second area RZ2, and the third area RZ3 'are secured from the inner periphery side. The third region RZ3 'is an open region where the end position is not fixed.

  Three areas of the scheduled recording area 53 are managed by respective start addresses. That is, it is managed by the start address RZA1 of the first area RZ1, the start address RZA2 of the second area, and the start address RZA3 of the third area. Since the second region RZ2 and the third region RZ3 are set in the first region RZ1 and the second region RZ2, the end addresses are fixed. Here, the address immediately before the start address is set as the end address. In the third region RZ3 ', the end address is uncertain. In the three recording scheduled areas of the recording scheduled area 53, data recording is started from this start address. The purpose, function, etc. of the three recording scheduled areas are not limited, but they are used separately for the data management area and user data recording.

  When the user data is recorded in the recording scheduled area 53 and is finished, the end address RZAE of the third area RZ3 'is determined. That is, as shown in FIG. 14B, the start address and end address of the three scheduled recording areas are determined, and the range of the scheduled recording area 53 is determined. When the range of the scheduled recording area 53 is determined, an extended recording control information area that is provided in the data area 23 and stores recording control information is set. When the recording of user data in the scheduled recording area 53 is completed, it is determined whether or not the extended recording control information area 55 is set. If an area for recording new recording control information is necessary, such as when there is no area for recording new recording control information in the recording control information area 27 provided in the system area 22, the extended recording control information area 55 is stored in the data area 23. Set. At this time, the new extended recording control area 55 is set to an area adjacent to the scheduled recording area 53 where the recording of the user data is completed, so that the data area 23 can be used effectively.

  When the area for recording the recording control information is insufficient, the extended recording control information area 55 is sequentially set in the data area 23 as described above. As the recording of user data proceeds, the area that can be additionally recorded decreases, and the recording control information also decreases. User data is recorded from the inner periphery to the outer periphery of the optical disk medium 6, and the remaining capacity that can be recorded decreases. Therefore, as shown in FIG. 15, the extended recording control information area 55 secured in the data area 23 is reduced in area size toward the outer peripheral side or in accordance with the remaining capacity. That is, the extended recording control information area 55-2 is smaller than the extended recording control information area 55-1, and the extended recording control information area 55-3 is narrower than the extended recording control information area 55-2. The capacity of the extended recording control information area 55 is set in correspondence with the radial position of the extended recording control information area 55 or the remaining capacity of the optical disc medium 6. Considering the ease of capacity setting, it is preferably variably set in several stages, for example, three stages.

  The operation of the optical disk recording apparatus for recording user data while setting the extended recording control information area 55 in the data area 23 will be described with reference to FIG. When the optical disk medium 6 is loaded into the optical disk recording apparatus, the latest information is read from the recording control information area 27. If some user data has already been recorded, control is performed to perform additional recording after the final recorded position (step S91).

  In order to record user data, a scheduled recording area 53 is set. Since this area setting also relates to an application that uses an optical disk, it is performed in accordance with an instruction from the host 2 that is a host device. That is, the recording scheduled area is managed by the host 2. For example, the first area RZ1 and the second area RZ2 are used as an area for recording user data management information, and the user data body is recorded in the third area RZ3. The first area RZ1 and the second area RZ2 are set with a start address and an end address. In the third area RZ3, the start address is set, but the end address is not set yet (step S92).

  Based on the address set in the scheduled recording area 53, the user data is sequentially recorded until all the user data to be recorded in the scheduled recording area 53 is recorded (step S93). When the scheduled user data is recorded (step S94-YES), the scheduled recording area 53 is closed. That is, the end address RZAE of the third area RZ3 is fixed, and the range of the recording scheduled area 53 is set (step S95).

  It is determined whether the recorded user data is the last user data recorded on the optical disk medium 6. If there is a possibility of recording user data (step S96-NO), the recording control information is added to the recording control information area 27 or the extended recording control information area 55 because the end address of the scheduled recording area 53 is set. It is determined whether or not an area remains (step S97). If there is a sufficient area for additionally recording the recording control information (YES in step S97), the process returns to step S92 to set the next scheduled recording area so as to record the next user data. When there is no remaining area for additionally recording the recording control information (step S97-NO), an area for additionally recording the recording control information is secured (step S98). At this time, the host 2 which is the host device is notified that the area for recording the recording control information is insufficient. Alternatively, the host 2 may manage the area for recording the recording control information, and the host 2 may instruct the optical disc recording apparatus 4 to secure a new area for recording the recording control information. Further, after the optical disk recording apparatus 4 secures a new area for recording the recording control information, the host 2 may be notified of the new area reservation.

  The area of the new extended recording control area 55 for recording the recording control information is secured in the data area 23 adjacent to the closed scheduled recording area 53. The capacity of the expanded recording control area 55 to be secured is determined according to the position of the secured area in the radial direction or the remaining capacity of the optical disc medium 6. For example, assuming that the data area 23 is set at a radial position of the optical disk medium 6 from 24.1 mm to 58.0 mm, 3 for the optical disk medium 6 having a user data capacity of 15 gigabytes according to the CLV (Constant Linear Velocity) method. Assume that the capacity of the extended recording control area is switched in stages. The recording control information is updated in units of an average of 100 megabytes. In the area on the inner peripheral side where the radius position of the extended recording control area is 35 mm or less, the area is 200 ECC blocks, in the case of 35 to 46 mm, 150 ECC blocks, and in the position of 46 to 58 mm on the outer peripheral side. About 100 ECC blocks should be secured.

  When the extended recording control information area 55 is set, the process returns to step S92 so as to record the next user data, and the next scheduled recording area is set. When such operations are repeated and user data to be recorded on the optical disk medium 6 has been recorded (YES in step S96), a recording end processing command is received from the host 2 and the recording end processing is performed. Control information such as a recording position of user data necessary for reproduction by the reproduction-only optical disk apparatus is recorded in the user data lead-in area 28. In addition, dummy data is recorded on the unrecorded portion remaining in the data area so that the entire recorded portion can be reproduced continuously (step S99).

  As described above, when the area for recording the recording control information is insufficient, or when it is necessary to record the recording control information in an area other than the system area 22, the extended recording control information area 55 is provided in the data area 23. Set sequentially. As for the capacity of the extended recording control information area, the area size is reduced as it goes to the outer peripheral side or according to the remaining capacity. Therefore, user data can be efficiently recorded on the optical disk medium.

  Although the description has been made mainly assuming an additional recording type optical disk medium, the present invention can also be applied to a rewritable type optical disk medium. In addition, there are cases where the type of information for recording control is further subdivided and recorded separately in another area between the recording control information area and the test recording area, but this case is also applicable.

It is a figure which shows the structure of the optical disk system of this invention. It is a figure which shows the structure of the optical disk apparatus of this invention. It is a figure which shows the structure of the optical disk medium of this invention. It is a figure which shows the logic structure of the optical disk medium of this invention. It is a figure which shows arrangement | positioning of each area | region of the conventional optical disk medium. It is a flowchart which shows the operation | movement recorded on the conventional optical disk medium. It is a figure which shows arrangement | positioning of each area | region which concerns on the 1st Embodiment of this invention. 4 is a flowchart showing an operation of recording on the optical disc medium according to the first embodiment of the present invention. It is a figure which shows arrangement | positioning of each area | region which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows the operation | movement recorded on the optical disk medium based on the 2nd Embodiment of this invention. It is a figure which shows arrangement | positioning of each area | region which concerns on the 3rd Embodiment of this invention. It is a flowchart which shows the operation | movement recorded on the optical disk medium based on the 3rd Embodiment of this invention. It is a figure which shows arrangement | positioning of each area | region which concerns on the 4th Embodiment of this invention. It is a figure which shows arrangement | positioning of each area | region which concerns on the 5th Embodiment of this invention. It is a figure which shows arrangement | positioning of the extended recording control information area which concerns on the 5th Embodiment of this invention. It is a flowchart which shows the operation | movement recorded on the optical disk medium based on the 5th Embodiment of this invention.

Explanation of symbols

2 Host device 4 Optical disc device 6 Optical disc medium 10 CPU
DESCRIPTION OF SYMBOLS 12 Access part 14 Disk controller 16 Encoder 18 Decoder 20 Rotation drive system 22 System area 23 Data area 24 Recording track 26 Test recording area 27 Recording control information area 28 User data lead-in area 29 Prepit area 30 Guard area 41 Border area 42 Expansion Test recording area 43 Extended recording control information area 44 User data recording area 46 Unrecorded data area

Claims (25)

An optical disc medium comprising a system area and a data area,
The system area is
A test recording area for trial recording in order to set an optimum recording condition when recording in the data area;
A recording control information area in which information necessary for recording user data in the data area is recorded;
A user data lead-in area required for reproducing the optical disk medium on which the user data is recorded,
An optical disc medium in which an extended recording control information area in which information necessary for recording the user data is recorded in the data area is provided in the data area. The optical disk medium according to claim 1, wherein the capacity of the extended recording control information area increases or decreases according to a radial position where the extended recording control information area is set. The optical disk medium according to claim 1, wherein a capacity of the extended recording control information area increases or decreases according to a capacity of an unrecorded portion in the data area where data can be recorded. The optical disk medium according to claim 2, wherein the capacity of the extended recording control information area decreases stepwise toward the outer periphery. The optical disk medium according to claim 4, wherein the capacity of the extended recording control information area changes in three stages. The optical disk medium according to any one of claims 1 to 5,
When the number of times information is recorded in the recording control information area reaches a preset number, the extended recording control information area in which information necessary for recording the user data is recorded in the data area is newly created. Optical disc set to The extended recording control information area is provided when the scheduled recording area provided on the outermost side among the plurality of scheduled recording areas secured when the user data is recorded in the data area is closed. The optical disc medium according to claim 1, wherein the optical disc medium is set. The optical disk medium according to any one of claims 1 to 7,
The information recorded in the recording control information area or the extended recording control information area is an optical disc medium including address information indicating the position of the extended recording control information area. The optical disk medium according to any one of claims 1 to 8,
An optical disk medium for trial recording in an extended test recording area provided in the data area. The optical disk medium according to claim 7,
The extended test recording area is an optical disc medium identified by a flag recorded in a flag area further provided in the data area. An optical disk device for driving an optical disk medium comprising a system area and a data area,
In the system area, a test recording area for trial recording to set an optimum recording condition for recording in the data area, and recording control information necessary for recording user data in the data area are recorded. A recording control information area, and a user data lead-in area necessary for reproducing the optical disk medium on which the user data is recorded,
An optical disc apparatus for recording the recording control information in an extended recording control information area set in the data area. The optical disc apparatus according to claim 11, wherein recording is performed by increasing or decreasing a capacity of the extended recording control information area according to a radial position where the extended recording control information area is set. 12. The optical disc apparatus according to claim 11, wherein recording is performed by increasing / decreasing a capacity of the extended recording control information area according to a capacity of an unrecorded portion in which data can be recorded in the data area. The optical disc apparatus according to claim 12 or 13, wherein recording is performed by gradually reducing the capacity of the extended recording control information area toward the outer peripheral side. The optical disc apparatus according to any one of claims 11 to 14,
An optical disc apparatus that sets the extended recording control information area in the data area when the number of times of information recording in the recording control information area reaches a preset number. When the scheduled recording area provided on the outermost side among the plurality of scheduled recording areas secured when the user data is recorded in the data area is closed, the information recording count is a preset number of times. The optical disk device according to claim 15, wherein if there is, the higher-level device is notified that the set number of times has been reached. The optical disc apparatus according to claim 16, wherein the extended recording control information area is set in the data area in response to an instruction from the host apparatus. The optical disk apparatus according to claim 16, wherein the higher-level apparatus is notified that the set number of times has been reached, and the extended recording control information area is set in the data area. The optical disc apparatus according to any one of claims 11 to 14,
An optical disc apparatus for recording address information indicating a position of the extended recording control information area in the recording control information area or the extended recording control information area. The optical disk device according to any one of claims 11 to 19,
An optical disc apparatus for trial recording in an extended test recording area provided in the data area. The optical disk apparatus according to claim 20, wherein
An optical disc apparatus for identifying the extended test recording area by a flag recorded in a flag area further provided in the data area. An optical disc information recording method for recording on an optical disc medium comprising a system area and a data area,
The system area includes a test recording area for trial recording in order to set an optimum recording condition for recording in the data area, and a recording control for recording information necessary for recording user data in the data area. An information area, and a user data lead-in area necessary for reproducing the optical disk medium on which the user data is recorded,
An optical disc information recording method comprising an extended control information recording step of recording information necessary for recording user data in the data area in the data area. The optical disk information recording method according to claim 22,
When the number of times information is recorded in the recording control information area reaches a preset number, the extended recording control information area in which information necessary for recording the user data is recorded in the data area An optical disc information recording method comprising the step of newly securing in the data area. The optical disk information recording method according to claim 22 or claim 23,
An optical disc information recording method further comprising a data area trial recording step for trial recording in an extended test recording area provided in the data area. The optical disc information recording method according to claim 24,
An optical disc information recording method further comprising: an extended test recording area identifying step for identifying the extended test recording area by a flag recorded in a flag area further provided in the data area.

Images