JP2011150743A - Optical disk device, method of recording and reproducing optical disk, optical disk recording and reproducing program, and recording medium storing optical disk recording and reproducing program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk device, a method of recording and reproducing an optical disk, an optical disk recording and reproducing program, and a recording medium storing an optical disk recording and reproducing program. <P>SOLUTION: When a pause is executed during reproduction of an optical disk 12 and when the pause is continued exceeding the prescribed time T, a section traced repeatedly by the pause is stored in an alternation region, TMDA being management information is updated, and after that, the pause is continued in a pause start position Sp. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an optical disc apparatus capable of recording / reproducing an optical disc, an optical disc recording / reproducing method, an optical disc recording / reproducing program, and a recording medium storing an optical disc recording / reproducing program.

  For example, optical discs that can be recorded, such as BD-R (Blu-ray Disc Recordable) and BD-RE (Blu-ray Disc Rewritable), are known. This type of optical disc records desired information by locally heating the information recording surface of the optical disc by irradiation with a laser beam.

  And at the time of reproduction, by detecting the change in the amount of return light due to the local change of the information recording surface while preventing the change of the information recording surface due to heat by irradiating the laser beam with a small amount of light, Thereby, the data recorded on the optical disc is reproduced.

  By the way, in an optical disc, even if the amount of laser beam is reduced during reproduction, a temperature rise cannot be avoided although it is slight. On the other hand, when a pause command is input from the host device, the optical disk device repeats track jumping and repeatedly scans the same portion. For this reason, if the pause is left for a long time, there is a problem that the recording mark deteriorates due to heat accumulation in a portion to be repeatedly reproduced, and reproduction of this portion cannot be normally performed.

  For example, an optical disc apparatus described in Patent Document 1 and a recording / reproducing apparatus described in Patent Document 2 have been proposed for the above-described problems. The optical disc apparatus described in Patent Document 1 stops scanning in a predetermined area when a temporary stop has elapsed for a predetermined time. When a pause is performed, the recording / reproducing apparatus described in Patent Document 2 scans the pause in an area closest to the position where the pause is designated among the non-recording area, the ROM zone, and the buffer zone. ing.

JP 2002-342950 A Japanese Patent Laid-Open No. 2002-334452

  However, the optical disk device described in Patent Document 1 has a problem that if the pause is repeated many times at the same position, the recording mark is deteriorated. In addition, the recording / reproducing apparatus described in Patent Document 2 has a problem that it takes time to resume reproduction because a search to a non-recording area, a ROM zone, and a buffer zone occurs every time a pause is made. Further, the recording / reproducing apparatus described in Patent Document 2 performs a pause operation in a non-recording area and then performs a recording operation in the non-recording area. There is a possibility that it cannot be recorded accurately.

  Therefore, the present invention provides, for example, an optical disc apparatus, an optical disc recording / reproducing method, an optical disc recording / reproducing program, and a recording medium storing an optical disc recording / reproducing program that can prevent the reproduction from being affected even when a long pause occurs. The task is to do.

  In order to solve the above problems, an optical disc apparatus according to claim 1 is configured to receive data from an optical disc having a recording area, a replacement area, and a management area in which information of replacement processing performed on the recording area is recorded. In an optical disc apparatus comprising reading means for reading and playing and recording means for recording information on the optical disc, it is determined whether or not a predetermined time has elapsed after a playback pause request is made to the playing means. If it is determined that the predetermined time has passed, the recording unit is caused to record data in a predetermined section from the position on the optical disc at which the temporary stop is requested in the replacement area, and the replacement for the fixed section is performed. A temporary stop control means for recording in the management area that processing has been performed is provided.

  The optical disc recording / reproducing method according to claim 6 reads and reproduces data from an optical disc having a recording area, a replacement area, and a management area in which information of replacement processing performed on the recording area is recorded, and reproduces the data on the optical disk. In an optical disc recording / reproducing method for recording information, it is determined whether or not a predetermined time has elapsed after a reproduction pause request is made, and if it is determined that the predetermined time has elapsed, the pause is requested. Further, it is characterized in that data of a predetermined section from the position on the optical disc is recorded in the replacement area, and that the replacement processing for the fixed section has been performed is recorded in the management area.

  An optical disk recording / reproducing program according to claim 7 is a reproducing means for reading and reproducing data from an optical disk having a recording area, a replacement area, and a management area in which information of replacement processing performed on the recording area is recorded. And a recording means for recording information on the optical disc, and determining whether or not a predetermined time has elapsed after a playback pause request is made to the playback means, If it is determined that the time has elapsed, the recording unit is caused to record data in a certain section from the position on the optical disc at which the pause is requested in the replacement area, and a replacement process for the certain section is performed. It is characterized by functioning as a suspension control means for recording the fact in the management area.

1 is a block diagram of an optical disc recording / reproducing apparatus according to a first embodiment of the present invention. It is explanatory drawing which showed the data structure of the optical disk reproduced | regenerated with the optical disk reproduction | regeneration apparatus shown by FIG. It is explanatory drawing of a change process. 3 is a flowchart of a pause operation in the optical disc playback apparatus shown in FIG. It is explanatory drawing of the scanning area in an optical disk at the time of the temporary stop of the optical disk recording / reproducing apparatus shown by FIG. It is explanatory drawing of the scanning area in an optical disk at the time of the temporary stop of the optical disk reproducing | regenerating apparatus concerning 2nd Example of this invention. It is explanatory drawing of the scanning area in an optical disk at the time of the temporary stop of the optical disk recording / reproducing apparatus shown by FIG.

  Hereinafter, an optical disc apparatus according to an embodiment of the present invention will be described. In the optical disc apparatus according to the embodiment of the present invention, the pause control unit determines whether a predetermined time has elapsed after the reproduction pause request is made, and if the predetermined time has elapsed, the recording unit is temporarily stopped. The data of a certain section from the requested position is recorded in the replacement area of the optical disk, and the fact that the replacement process has been performed is recorded in the management area of the optical disk. Recording in the replacement area by processing, and then accessing the replacement area when playing back that area, even if the recording mark of the portion scanned during the pause is degraded, it does not affect subsequent playback .

  Further, when the replacement process is completed, the pause control means returns to the position where the playback means is requested to pause, and continues the pause. It is possible to prevent the recording mark from deteriorating outside the area.

  In addition, a storage unit that stores information of a certain section is provided, and when the pause control unit determines that the playback resume position when the pause is released is included in the certain section, the storage unit stores the constant section Since the section information is read out and played back by the playback means, when returning from the playback start position, the playback can be quickly returned without seeking the replacement area.

  Further, since the pause control means controls to scan a certain section from a predetermined position recorded on the optical disc before the position where the pause is requested to a position where the pause is requested. , Playback can be resumed promptly at the pause position.

  In addition, storage means for storing the start position of the fixed section where the replacement process has been performed is provided, and the pause control means stores the pause position when a playback pause request is made to the playback means. If it is determined that the position is in the vicinity of the head position stored in the means, the playback means is paused at the head position stored in the storage means. When stopping, it is possible to pause without performing the replacement process again, and the data of the same area is recorded in the replacement area, and the time for performing the replacement process again is eliminated. it can.

  In addition, the optical disc recording / reproducing method according to an embodiment of the present invention determines whether or not a predetermined time has elapsed after a reproduction pause request is made, and if a predetermined time has elapsed, from the position where the pause is requested. Since data for a certain section is recorded in the replacement area of the optical disk and the fact that the replacement process has been performed is recorded in the management area of the optical disk, the data for the section that has been paused for a long time is recorded in the replacement area by the replacement process. Then, since the replacement area is accessed when reproducing the area thereafter, even if the recording mark of the portion scanned during the pause is deteriorated, the subsequent reproduction is not affected.

  In addition, the optical disc recording / reproducing program according to the embodiment of the present invention is configured such that the pause control unit determines whether a predetermined time has elapsed after the reproduction pause request has been made, The data for a certain interval from the position where the pause is requested is recorded in the replacement area of the optical disk, and the fact that the replacement process has been performed is recorded in the management area of the optical disk. The data of the last section is recorded in the replacement area by the replacement process, and then when the area is reproduced, the replacement area is accessed. Does not affect playback.

  Further, the above-described optical disc recording / reproducing program may be stored in a computer-readable recording medium. In this way, the optical disc recording / reproducing program can be distributed alone as well as being incorporated into the device, and version upgrades can be easily performed.

  An optical disc apparatus 1 according to a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the optical disk apparatus 1 includes a disk motor 2, an optical pickup 3, a carriage motor 4, a lead screw 5, an RF amplifier 6, a servo signal processing unit 7, a driver 8, and audio / video. A signal processing unit 9, a buffer 10, and a microcomputer 11 are provided.

  The disc motor 2 is a motor for rotating the optical disc 12 set in the optical disc apparatus 1, and is constituted by a spindle motor or the like.

  The optical pickup 3 includes a laser diode that generates laser light to be applied to the optical disk 12, an objective lens for condensing the laser light from the laser diode on the optical disk 12, and a focus direction and a signal from the servo signal processing unit 7. Photodiode comprising an actuator for driving the objective lens in the tracking direction and a photodiode for receiving the reflected light reflected from the optical disk 12, an optical system for guiding the laser light to the objective lens, and guiding the reflected light to the light receiver, etc. From the output, an RF signal including a track data such as video and music recorded on the optical disk 12, a focus error signal, a tracking error signal, and the like are generated and output to the RF amplifier 6. Further, the recording data input from the driver 8 is converted into a laser beam and recorded on the optical disc 12.

  The carriage motor 4 is a motor for moving the optical pickup 3 in the radial direction of the optical disk 12 through a lead screw 5 to be described later, and includes a stepping motor or the like.

  The lead screw 5 is formed in a columnar shape, a thread groove and a thread are formed on the outer peripheral surface thereof, and is installed in parallel with the radial direction of the optical disk 12. The lead screw 5 is mechanically connected to the rotation shaft of the carriage motor 4 and rotates in accordance with the rotation of the carriage motor 4. The screw groove and screw thread of the lead screw 5 are engaged with a screw thread and screw groove (not shown) formed in the optical pickup 3, and the optical pickup 3 moves along the radial direction of the optical disk 12 as the lead screw 5 rotates. To do.

  The RF amplifier 6 amplifies the signal input from the optical pickup 3 to a predetermined value and outputs the amplified signal to the servo signal processing unit 7.

  The servo signal processing unit 7 controls the focus and tracking by driving the actuator of the optical pickup 3 based on the control signal such as the focus error signal and the tracking error signal inputted from the RF amplifier 6 and is recorded on the optical disk 12. To read the information correctly. Further, the level of the input focus error signal is output to the microcomputer 11. Further, an RF signal including video and music recorded on the optical disk 12 is analog / digital converted and output to the audio / video signal processing unit 9, and the recording data input from the audio / video signal processing unit 9 is converted to an analog signal. And output to the driver 8.

  The driver 8 generates drive signals and outputs recording data to the disc motor 2 and the actuator of the optical pickup 3 and the carriage motor 4 from the signal input from the servo signal processing unit 7.

  The audio / video signal processing unit 9 performs error correction or the like on the signal input from the servo signal processing unit 7, performs demodulation and decoding, and outputs the result to the buffer 10. Then, the data is read from the buffer 10 and output to the host computer 20 in accordance with a request from the microcomputer 11. The recording data input from the host computer 20 or the like is converted into a recording format and output to the servo signal processing unit 7.

  Here, the disk motor 2, the optical pickup 3, the carriage motor 4, the lead screw 5, the RF amplifier 6, the servo signal processing unit 7, the driver 8, and the audio / video signal processing unit 9 read data from the optical disk 12 and reproduce it. And a recording / reproducing unit 15 as recording means for recording information on the optical disk 12.

  The buffer 10 is a memory for storing data such as video and audio reproduced by the audio / video signal processing unit 9 temporarily by a predetermined amount so that reproduction is not interrupted by vibration or the like, and is constituted by a semiconductor memory. . The buffer 10 stores data read from the optical disk 12 at a normal playback speed of several times normal speed and outputs it at a normal playback speed.

  The microcomputer 11 serving as a temporary stop control means includes a CPU (Central Processing Unit), a RAM (Random Access Memory) 11a, and a ROM (Read Only Memory) (not shown), and is based on an instruction from the host computer 20. The entire optical disk device 1 is controlled in each operation such as insertion, ejection, reproduction, stop, and pause of the optical disk 12. In this embodiment, the microcomputer 11 measures the stop time at the time of the temporary stop, and when the time is long, the recording / reproducing unit 15 performs the replacement process.

  In this embodiment, when a pause is instructed from the host computer 20, when a pause is performed for a predetermined time or longer, a replacement process is performed, and the data scanned at the time of the pause is written in the replacement area. The stop position is treated as an area where replacement processing has been performed. The detailed operation will be described later with reference to a flowchart. First, the structure of the optical disk 12 and the replacement process will be described as a previous step. The structure of the optical disk 12 is shown in FIG. The optical disk 12 is a recordable optical disk, and FIG. 2 shows an example of BD-R. As shown in FIG. 2, the optical disc 12 is provided with a lead-in zone, a data zone, and a lead-out zone from the inner peripheral side.

  The lead-in zone is mainly used as a management / control information area, and a predetermined area format such as TDMA0 (TDMA: Temporary Disc Management Area) is set.

  In the management / control information area, replacement management information for defect management is recorded. In order to be able to rewrite data using the replacement process, the contents of the replacement management information must be updated in accordance with the data rewriting. Furthermore, management information on the data recording structure must be updated in accordance with the additional recording. For this reason, an area called TDMA for updating these management information is provided. In this case, the management information (hereinafter also simply referred to as management information) regarding the replacement and data recording structure as described above is additionally recorded and updated sequentially from TDMA0. As will be described in detail later, when TDMA0 is used up for updating management information, additional writing can be performed in TDMA1 and TDMA2 as areas for writing further management information.

  In the data zone, an ISA (Inner Spare Area) is provided on the innermost periphery, and an OSA (Outer Spare Area) is provided on the outermost periphery. These ISA and OSA are used as replacement areas used for replacement processing due to defects. The ISA is formed with a predetermined number of cluster sizes from the start position of the data zone. The OSA is formed with a predetermined number of cluster sizes from the end position of the data zone to the inner circumference side. A section between the ISA and the OSA in the data zone is a user data area. This user data area is an area (recording area) used for normal user data recording and reproduction.

  The lead-out zone is a management / control information area, and various management / control information is recorded as in the lead-in zone.

  As shown in FIG. 2, TDMA0 is formed in the lead-in zone. Further, TDMA1 and TDMA2 can be provided in the spare area (ISA, OSA) as shown in the figure. Specifically, TDMA1 can be set in the ISA, and TDMA2 can be set in the OSA. These TDMA1 and TDMA2 can be set as areas for recording new management information when TDMA0 provided in the lead-in zone is used up for updating the management information. That is, when two TDMA1 and TDMA2 are provided as shown in this figure, the management information is updated in the order of TDMA0 → TDMA1 → TDMA2. That is, these TDMA1 and TDMA2 may be size 0. The areas other than TDMA1 and TDMA2 in the spare area become areas (alternate areas) for recording data recorded in the user data area by the replacement process.

  As described above, the optical disc 12 serves as a management area in which management information for replacement processing is recorded in the TDMA.

  Next, the replacement process will be described with reference to FIG. When there is a defective sector in the user data area, the replacement process records the data that was originally planned to be recorded in that sector in the replacement area, and records replacement information such as the address of the defective sector and the address of the replacement area in the TDMA. When data is read, when a defective sector is accessed, data is read from the replacement area with reference to replacement information. In the case of FIG. 3, if the defective sectors are sector 3 and sector 7 among sectors 1 to 9 in the user data area, and the corresponding replacement sectors are sector C and sector F in the replacement area, When accessing sequentially from 1, the sectors are accessed in the order of sectors 1, 2, C, 4, 5, 6, F, 8, and 9.

  Next, the operation in the case of pause (pause) during reproduction in the optical disc apparatus 1 having the above configuration will be described with reference to the flowchart of FIG. The flowchart shown in FIG. 4 is executed by the microcomputer 11.

  First, in step S1, it is determined whether or not the optical disk 12 set in the optical disk device 1 is a BD-R or a BD-RE. If it is a BD-R or a BD-RE (in the case of Yes), a step is performed. The process proceeds to S2, and if not (No), the process proceeds to Step S8. In this embodiment, BD-R or BD-RE will be described as an example. However, other types of optical disks can be applied as long as they have a replacement area and can be replaced. Therefore, in this step, it is determined whether or not the disk can be replaced.

  Next, in step S2, the pause start time St is acquired, and the process proceeds to step S3. The pause start time St is acquired from the time in the clock function operating in the microcomputer 11 when the pause command (request) from the host computer 20 is performed.

  Next, in step S3, the pause start position Sp is acquired, and the process proceeds to step S4. As the pause start position Sp, the address of the optical disc 12 at which the recording / reproducing unit 15 at the start of the pause has accessed the optical disc 12 is acquired.

  Next, in step S4, n tracks are traced (scanned) from the pause start position Sp, data in the trace is read and stored in the RAM 11a as a buffer (storage means), and the process proceeds to step S5. FIG. 5 shows the operation in the optical disk 12 during the pause. As shown in FIG. 5, the optical disk 12 is provided with a spiral track. During normal pause, for example, when n tracks (n is a natural number of 1 or more) tracks advance, the track jumps and the operation of returning to the previous n tracks is repeated. In the case of FIG. 5, when paused at the point S 1, when the point advances to the point E, it jumps by one track and returns to the point S 1. That is, point E is at a position to be reproduced after point S1 during normal reproduction.

  As shown in FIG. 5, since the track trace from the point S1 to the point E is repeated during the pause, the recording mark from the point S1 to the point E is deteriorated when paused for a long time. For this reason, data corresponding to points S1 to E is stored in a buffer such as the RAM 11a in order to cope with a replacement process described later. Note that the buffer 10 connected to the audio / video signal processing unit 9 may be used instead of the RAM 11a as a buffer for storing data from the S1 point to the E point.

  Next, in step S5, the pause start time St is subtracted from the current time, and it is determined whether or not the subtracted time has exceeded a predetermined time T (if yes), the process proceeds to step S6. If not (No), the process proceeds to step S9. That is, it is determined whether or not the pause time exceeds a predetermined time T. The predetermined time T may be set as appropriate as long as the recording mark does not deteriorate.

  Next, in step S6, the pause range data stored in the buffer is recorded in the spare area (alternate area), the TDMA is updated, and the process proceeds to step S7. This reads out the data stored in step S4 in the RAM 11a and causes the recording / reproducing means 15 to record the data in the spare area and update the TDMA. That is, in this step, since the predetermined time T has been exceeded, the replacement process is performed on the scanning range at the time of the pause. In other words, if it is determined that the predetermined time T has elapsed, the recording / reproducing means 15 is caused to record data in a certain section from the position on the optical disk 12 where the pause is requested to the replacement area, and the replacement process for the certain section is performed. Is recorded in TDMA.

  Next, in step S7, the process returns to the pause start position Sp and proceeds to step S8. That is, when the replacement process is completed, the pause is continued at the pause start position.

  Next, in step S8, it is determined whether or not the pose has been released. If the pose has been released (Yes), the process proceeds to step S14. If not released (No), the process proceeds to step S12.

  On the other hand, in step S9, it is determined whether or not the pause is released. If released (Yes), the process proceeds to step S16, and if not released (No), the process proceeds to step S10.

  Next, in step S10, n track jumpback is performed, and the process proceeds to step S11. In this step, the track is backed by n tracks from the position tracked by n tracks, that is, has returned to the pause start position Sp (point S1 in FIG. 5).

  Next, in step S11, n tracks are traced and the process returns to step S5. That is, n tracks are traced again from the pause start position Sp.

  In step S12, the n-track jump back is performed and the process proceeds to step S13. In this step, as in step S10, the track is backed by n tracks from the position where n tracks have been traced, that is, has returned to the pause start position Sp.

  Next, in step S13, n tracks are traced and the process returns to step S8. That is, n tracks are traced again from the pause start position Sp.

  In step S14, it is determined whether or not the reproduction start position S2 on the optical disc 12 is included in the pause range (points S1 to E in FIG. 5). If included (if Yes), the process proceeds to step S15. When not included (in the case of No), the process proceeds to step S16. In this step, it is determined whether or not the reproduction restart position has moved from the point S1 to a different position by a reproduction command for another track during the pause. That is, the case where it is included in the traced range from point S1 to point E is the case where there is no movement of the track during the pause, and the case where it is not included is the case where there is a movement of the track during the pause.

  Next, in step S15, the pause range data stored in the buffer is read and reproduced, and thereafter, the data is reproduced from the optical disk 12. In this step, the data of points S1 to E stored in the buffer in step S4 is output to the audio / video signal processing unit 9 and reproduced. In this way, when returning from the playback start position S2, it is possible to quickly return to playback without seeking the replacement area. Data after point E is read from the optical disk 12 and is normally reproduced. That is, when it is determined that the reproduction restart position S1 when the pause is released is included in the traced fixed section, the data of the fixed section stored in the RAM 11a is read and reproduced.

  Next, in step S16, the reproduction is resumed from the reproduction position S2 on the optical disk 12.

  According to the present embodiment, when paused during playback of the optical disc 12, if the pause continues for a predetermined time T, the section repeatedly traced by the pause is stored in the replacement area and is management information. Since the TDMA is updated, when the section that has been repeatedly traced is played back, the replacement area is accessed, so even if the recording mark of the traced part at the time of pause is deteriorated, the subsequent playback is affected. Does not affect.

  Further, when the replacement process is completed, the pause can be continued in the section that is repeatedly traced by the pause, and the recording mark can be prevented from deteriorating in a region other than a certain section from the position where the pause is requested.

  In addition, when the playback restart position S2 is included in the traced section, the trace section data stored in the RAM 11a is played back. Therefore, even if the playback restart position is deteriorated, the replacement process involves a seek operation. The playback operation can be resumed promptly.

  Next, an optical disc apparatus 1 according to a second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment described above are denoted by the same reference numerals and description thereof is omitted.

  In the first embodiment, tracing is performed from the pause position S1 point to the point E which is a position to be normally reproduced at the time of pause, but in this embodiment, as shown in FIG. The difference is that the operation is performed so as to trace from point F to point S1, which is a position to be reproduced before point S1.

  The operation when paused during reproduction in this embodiment will be described with reference to the flowchart of FIG. Steps S1 to S13 in FIG. 7 are the same as those in the first embodiment.

  In step S21 that proceeds when step S8 is Yes, it is determined whether or not the reproduction restart position S2 is included in the pause range (points F1 to S1 in FIG. 6), and if included (in the case of Yes). The process proceeds to step S22, and if not included (in the case of No), the process proceeds to step S23. Also in this step, as in step S14 of the first embodiment, it is determined whether or not the reproduction restart position has moved from the point S1 to a different position in response to a reproduction command for another track during the pause. In other words, the case where it is included in the trace range from point F to point S1 is the case where there is a movement of the track during the pause, and the case where it is not included is the case where there is no movement of the track during the pause. Normally, when paused at point S1 and playback is resumed at that position, playback is resumed from the data recorded after point S1. In this embodiment, when playback is resumed at point S1, it is within the trace range. Not included.

  Next, in step S22, the data recorded in the spare area is read out and reproduced, and thereafter normal reproduction is performed.

  Next, in step S23, the reproduction is resumed from the reproduction position S2 on the optical disk 12.

  According to the present embodiment, at the time of pause, since the operation is performed so as to trace from the point F to the point S1, which is the position to be reproduced normally before the pause start position S1, the reproduction is resumed at the pause position S1. When you do this, you can quickly resume playback.

  When the above-described replacement process associated with a long pause occurs, the pause start position Sp is stored in, for example, the RAM 11a serving as a storage unit. When a pause is instructed in the subsequent reproduction operation, the pause position is stored in the RAM 11a. May be performed in a section from the pose start position Sp in the vicinity. Specifically, the microcomputer 11 acquires the playback position at the time when the pause is instructed from the recording / playback unit 15, compares the position with the pause start position Sp in the RAM 11a, and starts the pause near the position. It is determined whether or not there is a position Sp. If there is, the recording / reproducing unit 15 is instructed to pause at the pause start position Sp. By doing so, time for performing the replacement process can be saved, and data stored in the replacement process can be duplicated and data in the same area can be recorded. It should be noted that the range in the vicinity may be set as appropriate in a range that does not feel slow when playback is restored.

  According to the above-described embodiment, the following optical disc apparatus 1, optical disc recording / reproducing method, and optical disc recording / reproducing program can be obtained.

(Appendix 1) User data area, replacement area, and recording / reproducing unit 15 that reads and reproduces data from an optical disk 12 having a TDMA in which information of replacement processing performed on the user data area is recorded; In an optical disc apparatus 1 comprising a recording / reproducing unit 15 for recording
It is determined whether or not a predetermined time T has elapsed after a playback pause request is made to the recording / playback unit 15. If it is determined that the predetermined time T has elapsed, a pause is requested to the recording / playback means 15. An optical disc apparatus 1 comprising: a microcomputer 11 for recording data in a predetermined section from a position on the optical disc 12 in a replacement area and recording in TDMA that replacement processing for the fixed section has been performed.

  According to this optical disc apparatus 1, the data of the section in which the pause has been performed for a long time is recorded in the replacement area by the replacement process, and then, when the area is reproduced, in order to access the replacement area, it is scanned at the time of the pause. Even if the recorded mark of the existing part deteriorates, the subsequent reproduction is not affected.

(Supplementary note 2) Optical disk recording for reading and reproducing data from and recording information on the optical disk 12 with respect to the user data area, the replacement area, and information on the replacement process performed on the user data area. In the playback method,
It is determined whether or not a predetermined time T has elapsed after the reproduction pause request is made, and if it is determined that the predetermined time T has elapsed, data in a certain section from the position on the optical disk 12 where the pause is requested is replaced with a replacement area. An optical disc recording / reproducing method characterized by recording in TDMA that the replacement processing for a certain section has been performed.

  According to this optical disc recording / playback method, data of a section in which a pause has been performed for a long time is recorded in the replacement area by a replacement process, and then when the area is played back, it is scanned during the pause in order to access the replacement area. Even if the recorded mark in the portion is deteriorated, the subsequent reproduction is not affected.

(Supplementary note 3) User data area and replacement area, recording / reproducing unit 15 for reading and reproducing data from optical disk 12 having TDMA in which information of replacement processing performed on the user data area is recorded, and information on optical disk 12 A computer of the optical disc apparatus 1 having a recording / reproducing unit 15 for recording
It is determined whether or not a predetermined time T has elapsed after a playback pause request is made to the recording / playback unit 15. If it is determined that the predetermined time T has passed, a pause is requested to the recording / playback unit 15. An optical disc recording / reproducing program for causing a TDMA to record that data of a predetermined section from a position on the optical disc 12 is recorded in a replacement area and the replacement processing for the fixed section is performed.

  According to this optical disc recording / playback program, data of a section in which a pause has been performed for a long time is recorded in a replacement area by a replacement process, and thereafter, when the area is reproduced, in order to access the replacement area, scanning is performed at the time of the pause. Even if the recorded mark in the portion is deteriorated, the subsequent reproduction is not affected.

  In addition, the Example mentioned above only showed the typical form of this invention, and this invention is not limited to an Example. That is, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Optical disk apparatus 11 Microcomputer (temporary stop control means)
11a RAM (storage means, storage means)
12 optical disc 15 recording / reproducing unit (reproducing means, recording means)

Claims (8)

A reproducing means for reading and reproducing data from an optical disk having a recording area, a replacement area, and a management area in which information of replacement processing performed on the recording area is recorded; a recording means for recording information on the optical disk; In an optical disc device comprising:
It is determined whether or not a predetermined time has elapsed after the playback unit is requested to pause playback. If it is determined that the predetermined time has elapsed, the recording unit is requested to pause. And a pause control means for recording data in a predetermined section from the position on the optical disc in the replacement area and recording in the management area that the replacement process for the fixed section has been performed. Optical disk device.   2. The system according to claim 1, wherein when the pause control unit detects that the replacement process is completed, the playback unit returns to the position where the pause is requested and continues the pause. Optical disk device. Storing means for storing the information of the predetermined section;
When the pause control means determines that the playback resume position when the pause is released is included in the certain section, the information on the certain section stored in the storage means is read out to the playback means. The optical disk apparatus according to claim 1, wherein the optical disk apparatus is reproduced.   The pause control means controls to scan a predetermined section from a predetermined position recorded on the optical disc before the position at which the pause is requested to a position at which the pause is requested. The optical disk apparatus according to claim 1, wherein: Storage means for storing a head position of the fixed section where the replacement process has been performed;
The pause control means determines whether or not the pause position is in the vicinity of the head position stored in the storage means when a playback pause request is made to the playback means; 5. The optical disc apparatus according to claim 1, wherein if it is determined to be in the vicinity, the reproducing unit is caused to pause at the head position stored in the storage unit. 6. . In an optical disc recording / reproducing method for reading and reproducing data from an optical disc having a recording area and a replacement area and a management area in which information of replacement processing performed on the recording area is recorded and recording information on the optical disc,
It is determined whether or not a predetermined time has elapsed after the reproduction pause request is made, and if it is determined that the predetermined time has elapsed, the data in a certain section from the position on the optical disk at which the pause is requested An optical disc recording / reproducing method comprising: recording in the replacement area, and recording in the management area that the replacement process for the predetermined section has been performed. A reproducing means for reading and reproducing data from an optical disk having a recording area, a replacement area, and a management area in which information of replacement processing performed on the recording area is recorded; a recording means for recording information on the optical disk; An optical disk device computer comprising
It is determined whether or not a predetermined time has elapsed after the playback unit is requested to pause playback. If it is determined that the predetermined time has elapsed, the recording unit is requested to pause. It is made to function as a pause control means for recording data in a certain section from the position on the optical disc thus recorded in the replacement area, and recording in the management area that the replacement process for the certain section has been performed. Optical disc recording / playback program.   A computer-readable recording medium storing the optical disc recording / reproducing program according to claim 7.

Images