JPH10302449A - Information recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the write once thereafter, even though a track wherein the track information is not being recorded on the PMA area of a recordable optical disk, is existent in the program area. SOLUTION: When the track wherein the track information is not being recorded on the PMA area is detected on the program area by data on the mounting process at the time the recorded CD-R disk is inserted, the start address and end address of the detected track are detected by a system controller 11, and the track information consisting of the detected start address and end address is written once on the PMA area of the CD-R disk.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to an information recording and reproducing apparatus such as a CD-R drive and a CD-RW drive for recording and reproducing data on and from an optical disk such as a RW.

[0002]

2. Description of the Related Art Conventionally, data is recorded on an optical disk such as a CD-R or the like in track units, table of contents information (TOC) recorded on the optical disk is read, and whether the optical disk is a read-only disk or a recordable disk is determined. There is an information recording / reproducing apparatus for discriminating (for example, see Japanese Patent Application Laid-Open Nos. 4-106758 and 5-205279).

In the information recording / reproducing apparatus as described above, the number of tracks recorded in the PMA area and the number of tracks existing in the program area are usually determined by the mounting process when an arbitrary optical disc on which data is recorded is inserted. Is the same. When a reserved track exists, P
The number of tracks recorded in the MA area is larger.

However, tracks that are not recorded in the program memory area (PMA area) for managing track information may be detected in the program area. For example,
Track numbers 1 to X are recorded in the PMA area, while tracks with track numbers 1 to X + 1 are recorded in the program area.

The reason why such a track exists can be considered as follows. (1) A servo error occurred during or before recording in the PMA area, and track information could not be recorded in the PMA area. (2) A write error such as a servo error occurred while recording a track, and the subsequent track information could not be recorded in the PMA area.

[0006]

However, in the information recording / reproducing apparatus as described above, a program memory area (PMA area) for managing track information in a mounting process when an arbitrary optical disk on which data is recorded is inserted.
When a track not recorded in the program area is detected in the program area, the number of tracks based on the track information in the PMA area does not match the number of tracks existing in the program area. There is a problem that the recordable area of the optical disc is wasted.

[0007] The present invention has been made in view of the above points, and makes it possible to additionally record even if a track in which track information is not recorded in the program memory area of a recordable optical disc is in the program area. The purpose is to:

[0008]

According to the present invention, there is provided an information recording / reproducing apparatus provided with means for recording and reproducing data in track units on a recordable optical disk. When a track in which no track information is recorded in the program memory area is detected in the program area in the mounting process when a track is inserted, the start address and end address of the detected track are detected, and the detected start address and end address are detected. A means for additionally writing track information consisting of an address in the program memory area is provided.

Also, in an information recording / reproducing apparatus provided with means for recording and reproducing data in track units on a recordable optical disk, track information is stored in a program memory area by a mounting process when an optical disk on which data is recorded is inserted. When a track on which no data is recorded is detected in the program area, it is determined whether or not the length of the detected track satisfies the minimum standard value. Dummy data is added from the end of the track to be extended to a track length that satisfies the above minimum specification value, a start address and an end address of the extended track are detected, and track information including the detected start address and end address is obtained. It is preferable to provide a means for additionally writing in the program memory area.

[0010] Further, it is preferable to provide a means for setting reproduction inhibition for the track of the additionally written track information.

In an information recording / reproducing apparatus provided with means for recording and reproducing data in track units on a recordable optical disk, the track information is stored in a program memory area by a mounting process when an optical disk on which data is recorded is inserted. When a track on which no data is recorded is detected in the program area, it is determined whether or not the length of the detected track satisfies the minimum standard value. Playback is performed, and if a run-out block cannot be detected, it is determined as an error track, the start address and end address of the detected track are detected, and track information including the detected start address and end address is added to the program memory area. And the added track information Tsu may be provided with means for setting a reproduction inhibition against click.

Further, it is preferable to provide means for recording reproduction inhibition information indicating the setting of the reproduction inhibition on the inserted optical disk.

Further, when there is an error track in a session in which the lead-in area and the lead-out area on the optical disk are not recorded, the table of contents of the error track is erased, and a track following the error track is deleted. It is preferable to provide a means for recording by subtracting the track number by one.

According to a first aspect of the present invention, there is provided an information recording / reproducing apparatus which detects a track in which no track information is recorded in a program memory area in a program area in a mounting process when an optical disk on which data is recorded is inserted. Then, the start address and the end address of the detected track are detected, and the track information including the detected start address and end address is added to the program memory area.

Therefore, when a track on which track information such as a start address and an end address is not recorded in the program memory area of the optical disk is detected in the program area in the mounting process when the optical disk is inserted, the track information of the track is detected. Is detected and recorded in the program memory area, so that a new track can be added after that track, and the empty area of the optical disc can be effectively utilized.

Further, for a track recorded in the program area of the optical disk, additional writing cannot be performed unless the track length meets the minimum standard value. For example, in the case of a CD-R disc, a CD-R disc standard called Orange Book (CD-WO Ver.
0) defines the minimum standard value of the track length: 300 sectors, and cannot be added to a CD-R disc having a track with a track length of less than 300 sectors.

Therefore, the information recording / reproducing apparatus according to the second aspect of the present invention detects a track in which track information is not recorded in the program memory area in the program area by a mounting process when an optical disk on which data is recorded is inserted. Then, it is determined whether or not the length of the detected track satisfies the minimum standard value. If the length does not satisfy the minimum standard value, the track is determined to be an error track, and dummy data is added from the end of the detected track. The track is extended to a track length satisfying the minimum specification value, a start address and an end address of the extended track are detected, and track information including the detected start address and end address is added to the program memory area.

Therefore, when a track recorded on the optical disk has a track length less than the minimum standard value, dummy data is additionally written on the track to make the track length satisfy the minimum standard value, so that a new track is added after the track. Tracks can be additionally recorded, and the empty area of the optical disk can be effectively used.

For example, the minimum specification value for a CD-R disc is:
If there is a track whose track length does not reach 300 sectors, it can be determined that some write error has occurred during recording of that track. Further, since the track length of the track is restored to 300 sectors and recorded, a new track can be added after the track.

Furthermore, even if a track determined to be an error track is reproduced, the data cannot be correctly reproduced to the end because the track ends halfway, so that the reproduction process is wasted and the work efficiency is reduced. Will drop.

Therefore, the information recording / reproducing apparatus according to the third aspect of the present invention sets reproduction inhibition to the track of the additionally written track information.

Accordingly, by prohibiting reproduction of a track having a track length satisfying the minimum standard value by additionally writing the dummy data, the host computer, reproduction application software, and information recording / reproducing apparatus by reproducing the track are wasted. Processing time can be reduced, and work efficiency can be improved.

Further, even if the track length of the track satisfies the minimum standard value, a write error occurs during recording, and there is an error track in which a predetermined run-out block is not recorded at the end of the track. Even if such an error track is reproduced, the data cannot be correctly reproduced to the end because the track ends halfway, so that the reproduction process is wasted and the work efficiency is reduced.

Therefore, the information recording / reproducing apparatus according to a fourth aspect of the present invention detects a track in which no track information is recorded in the program memory area in the program area by a mounting process when an optical disk on which data is recorded is inserted. Then, it is determined whether or not the length of the detected track satisfies the minimum standard value.If the length satisfies the minimum standard value, the vicinity of the end address of the track is reproduced, and if the run-out block cannot be detected, The start address and the end address of the detected track are detected by determining that the track is an error track, and track information including the detected start address and end address is additionally written in the program memory area. To set playback prohibition.

Therefore, by inhibiting the reproduction of a track for which a predetermined run-out block has not been detected even if the track length satisfies the minimum standard value, the host computer, reproduction application software, and information recording by reproducing the track are prohibited. It is possible to reduce useless processing time of the reproducing apparatus and improve work efficiency.

Further, at the time of mounting the optical disk, a track whose track length satisfies the minimum standard value by adding dummy data and a track whose predetermined run-out block cannot be detected even though the track length satisfies the minimum standard value are used. Even if the reproduction is prohibited, if the reproduction is performed by the read after remounting, the reproduction process is useless and the work efficiency is reduced.

Therefore, an information recording / reproducing apparatus according to a fifth aspect of the present invention records reproduction prohibition information indicating the reproduction prohibition setting on the inserted optical disc.

Therefore, reproduction is prohibited for a track having a track length satisfying the minimum standard value by adding dummy data on the optical disk and a track for which a predetermined run-out block cannot be detected even if the track length satisfies the minimum standard value. By recording the information on the optical disk, the reproduction of the track can be prohibited based on the reproduction prohibition information even when the optical disk is remounted, so that the host computer, the reproduction application software, and the information recording / reproducing device useless reproduction processing time. Can be reduced, and work efficiency can be improved.

Further, even if the error track on the optical disk is determined as described above and the reproduction is set to the error track, the reproduction of the error track is prohibited when the optical disk is reproduced by the reproduction-only device. Can not do. This is because the read-only device reproduces only the TOC information at the time of mounting the optical disc to obtain the track information, and cannot recognize the error track on the optical disc.

According to a sixth aspect of the present invention, there is provided an information recording / reproducing apparatus, wherein when an error track is present in a session where no lead-in area and lead-out area are recorded on the optical disc, the table of contents of the error track Is erased, and the track number of the track following the error track is subtracted by one and recorded.

Therefore, when the reproduction is performed by the reproduction-only device, the dummy data on the optical disk is additionally recorded to make the track having the track length satisfying the minimum standard value and the predetermined run-out block even if the track length satisfies the minimum standard value. It is possible to make it impossible to reproduce a track that could not be detected, and to avoid a problem caused by reproducing an error track.

[0032]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a block diagram showing a configuration of a CD-R drive according to an embodiment of the information recording / reproducing apparatus of the present invention.

This CD-R drive comprises a user microcomputer (CPU) 1, a flash ROM 2, a host interface (I / F) controller 3, a buffer manager 4, a DRAM 5, a subcode operation controller 6, a CD-ROM encoder 7, an SRAM.
8, CD-ROM decoder 9, audio controller 10, system controller 11, CD encoder 1
2, a CD decoder 13, a servo 14, and a spindle controller 15.

The CPU 1 is a central processing LSI for controlling all operations of the CD-R drive. Flash R
OM2 is a non-volatile memory that can be erased and rewritten by the CPU. The host I / F controller 3 is an LSI that controls data communication between the host computer and the CD-R drive. The buffer manager 4 is an LSI that controls transfer of data transferred from the host computer and data read from the optical disc 20.

The DRAM 5 is a memory for temporarily storing data transferred from the host computer and data read from the optical disk 20. The subcode operation controller 6 is an LSI that generates subcodes (SUBP, Q, R,..., W) to be recorded on the optical disc 20 and separates subcodes read from the optical disc 20.

The CD-ROM encoder 7 has a CD-RO
LS that modulates M data before writing to optical disc 20
I. The SRAM 8 is a memory for storing program variables and the like. The CD-ROM decoder 9 reads the reproduced C
This is an LSI for demodulating D-ROM data.

The audio controller 10 is an LSI for controlling music reproduction. The system controller 11 is an LSI that controls recording and reproduction of information on the optical disc 20. The CD encoder 12 is an LSI that modulates the user data and subcode transferred from the host computer before recording information on the optical disc 20 so as to conform to the disc standard.

The CD decoder 13 is an LSI for demodulating information reproduced from the optical disk 20 by separating the information into user data and subcodes. The servo 14 controls the positioning of tracks when writing information to the optical disk 20 and when reading information from the optical disk 20. The spindle controller 15 is an LSI that controls the rotation of the optical disc 20.

That is, the system controller 11
Means for recording and reproducing data in track units on a recordable optical disc, and mounting a track on which no track information is recorded in a program memory area in a program memory area in a mounting process when an optical disc on which data is recorded is inserted. When it detects the start address and end address of the detected track, it functions as a means for adding track information including the detected start address and end address to the program memory area.

When a track on which track information is not recorded in the program memory area is detected in the program area in the mounting process when an optical disk on which data has been recorded is inserted, the length of the detected track is set to the minimum standard. It is determined whether or not the value satisfies the minimum standard value.If the minimum standard value is not satisfied, it is determined that the track is an error track, and dummy data is added from the end of the detected track and extended to a track length satisfying the minimum standard value. Detect the start address and end address of the extended track,
It also functions as a means for additionally writing track information including the detected start address and end address in the program memory area.

Further, it also functions as a means for setting reproduction inhibition to the track of the additionally written track information.

When a track in which track information is not recorded in the program memory area is detected in the program area in the mounting process when an optical disk on which data is recorded is inserted, the length of the detected track is set to the minimum standard. Judgment is made as to whether the value satisfies the minimum specification value. When the minimum specification value is satisfied, the vicinity of the end address of the track is reproduced. And the end address are detected, track information including the detected start address and end address is additionally written in the program memory area, and the function of setting reproduction inhibition to the track of the additionally written track information is also performed.

Further, it also functions as a means for recording the reproduction inhibition information indicating the setting of the reproduction inhibition on the inserted optical disk.

Further, when there is an error track in a session in which the lead-in area and the lead-out area on the optical disk are not recorded, the table of contents of the error track is erased, and the track following the error track is deleted. It also functions as means for recording by subtracting the track number by one.

Next, the format of a CD-R disc will be described. FIG. 2 is an explanatory diagram showing an example of the format of a CD-R disc. The CD-R disc is an optical disc on which information can be recorded and reproduced, and as shown in FIG. 2, a power calibration area (PCA area) 21, a program memory area (PMA area) 22, a lead-in area, as shown in FIG. 23 and a program area 24.

PCA (Power Calibrati)
The on area) area 21 is a recording area for performing calibration, which is test writing for determining the recording power of laser light when recording information on an optical disc. Program Area (Program Area) 24
Indicates one or more tracks (Trac
k) 25 is a recording area for recording information on each track 25. For example, in the case of a music CD, one track of data is recorded on one track.

PMA (Program Memory)
The (Area) area 22 is a recording area for recording track information such as a start address, an end address, and a data mode of each track 25.

Usually, the user data transferred from the host computer is recorded in the recording area of the optical disk 20 in session units. Session (Session
n) 30 is a lead-in (Lead-In) area 23
, One or a plurality of tracks 25, and a lead-out (Lead-Out) area 26.

The lead-in area 23 is a recording area indicating the beginning of the session 30 and has a session 30 therein.
The table of contents information (TOC) is recorded as track information of the tracks included in the table. The lead-out area 26 is a recording area indicating the end of the session 30 and records the start address of the first track 25 in the session 30.

An optical disk in which a plurality of sessions are formed in the program area 24 is called a multi-session disk. For example, a commercially available music CD
Is a single session disc, and there is one lead-in area and one lead-out area on the disc. On the other hand, a multi-session disc has a plurality of combinations of a lead-in area and a lead-out area, and it is general to record user data transferred from a host computer in a multi-session format.

FIG. 3 is an explanatory diagram showing the format of the PCA area shown in FIG. PC on CD-R disc
The A area 21 includes a test area (Test Area) 50.
And a count area 51.

The test area 50 is divided into 100 partitions, and one partition is used each time power calibration is performed once. Therefore,
Power calibration cannot be performed more than 100 times.

The count area 51 is divided into 100 partitions, and each partition corresponds to each partition of the test area 50. Each time one partition of the test area 50 is used for power calibration, the partition is set to the corresponding partition. Is recorded as indicating that it has been used for one partition corresponding to. That is, the count area 51 is used to search for an unused partition in the test area 50.

The areas before and after the 100 partition in the test area 50 are not used since they are used for searching the start position of the 100 partition and the start position of the count area 51, respectively.

In this CD-R drive, the buffer area after 100 partitions of the count area 51 used for searching for the start position of the PMA area 22 is normally read to inhibit the reproduction of tracks. It is also used as an area for recording protection information.

Next, the track format of a CD-R disc will be described. FIG. 4 is an explanatory diagram showing an example of a track format of a CD-R disc. CD-
The track 25 on the R disk has a pre-gap (Pre
Gap) area 40, user data (User Dat)
a) Region 41, Run Out region 42
Consists of

The pre-gap area 40 is located at the head of the track, and is composed of, for example, 150 blocks or 225 blocks. In the case of music data, it is a silent section. The pre-gap area 40 includes a link (Link) area 43 and a run-in (Run In) area 44. The link area 43 is a link block (Link Block) of one block indicating a joint between tracks. The area 44 includes four run-in blocks (Run In Block) indicating the beginning of the track.

The user data area 41 is a recording area for recording user data transferred from the host computer, and is composed of a plurality of blocks. Runout area 42
Consists of two run-out blocks (Run Out Block) indicating the end of the track.

FIG. 5 shows the PMA of a CD-R disc.
FIG. 4 is an explanatory diagram of information to be recorded in an area, in which track information of a start address of a track indicated by a broken line frame in the figure and track information of an end address of the track indicated by a broken line frame in the figure are recorded. FIG. 6 is an explanatory diagram of the TOC data recorded in the lead-in area of the CD-R disc. Point information (POINT) of "01" to "99" is track information.

Next, a description will be given of a mounting process for acquiring and recording unrecorded track information in the PMA area of the optical disk when the optical disk is inserted into the CD-R drive. FIG. 7 is a flowchart showing the mounting process.

When the optical disk 20 is inserted, a spin-up process for rotating the optical disk steadily is executed in step (indicated by “S” in the figure) 1 and the process proceeds to step 2 where laser light is applied to the recording surface of the optical disk. A focus process for irradiation is performed, and the process proceeds to step 3 to perform a tracking process for causing the actuator to follow the track groove of the optical disk. The process proceeds to step 4 where the ATIP is performed at the home position, which is the center of the lead-in area of the optical disk.
Is performed to detect ATIP.

The recording surface of a CD-R disc has an ATIP
Are recorded in the track groove, and the physical address (minute, second, frame) is recorded in the ATIP. This A
When TIP is detected, it can be determined that a CD-R disc has been inserted, and when ATIP is not detected, CD-ROMs generally sold in the market
It can be determined that a stamp disk such as is inserted.

Therefore, when a CD-R disc is inserted, the ATIP can be detected by the ATIP reproduction processing in step 4, and when an optical disc other than a CD-R disc such as a CD-ROM is inserted, the ATIP in step 4 is executed. ATIP cannot be detected in the reproduction process.

Proceeding to step 5, ATIP of step 4
It is determined whether or not the disc is a CD-R disc based on the reproduction processing result. If ATIP is detected, the disc is judged to be a CD-R disc, and the process proceeds to step 6. If ATIP is not detected, it is judged that the disc is not a CD-R disc. And step 8
Proceed to.

In step 6, the PMA of the CD-R disc is
A PMA read for reading track information recorded in the area is executed, and the process proceeds to step 7 to acquire the number of tracks “X” from the track information.

As shown in FIG. 5, the start address and the end address of all tracks recorded on the optical disk are recorded in the PMA area irrespective of the number of sessions. The number of tracks “X” can be obtained based on the number of tracks.

Proceeding to step 8, the lead-in area is reproduced, and a TOC read for reading out the TOC information recorded in the lead-in area is executed. Proceeding to step 9, a track in the session is read based on the TOC information. Then, the process proceeds to step 9 to reproduce the entire lead-in area when the optical disk is a multi-session disk, and obtains the number of sessions.

As shown in FIG. 6, TOC area contains TO
C information is recorded and point information (POINT)
Is "01" to "99", the value indicates the track information of the track existing in the session. In addition,
The CD-ROM device (information-only device) reproduces the TOC area at the time of mounting and acquires track information.

If no ATIP is detected in step 5, it is determined that the disc is not a CD-R disc but a stamp disc such as a CD-ROM, and the process proceeds to step 8 where the lead-in area is reproduced and the lead-in area is reproduced. A TOC read for reading the recorded TOC information is executed, and the process proceeds to step 9 to obtain track information of a track in the session based on the TOC information. If the process proceeds to step 9 and the optical disc is a multi-session disc, Play all lead-in areas and get the number of sessions.

In step 10, it is determined whether the inserted optical disc is a CD-R disc or not.
If it is a disc, the process proceeds to step 11 to reproduce the head of the track (X + 1) of the track number next to the track (X) of the maximum track number recorded in the PMA area in the program area.

The reproduction process is a process for confirming whether or not a track (X + 1) in which track information is not recorded in the PMA area exists in the program area on the optical disc. In the conventional CD-R drive, If it is determined that the track (X + 1) exists on the optical disk, additional writing is prohibited or the disk is recognized as an illegal disk.

Proceeding to step 12, the track (X + 1)
It is determined whether or not a reproduction signal is detected when reproducing the data, and when a reproduction signal is detected, the process proceeds to step 13 and the track (X +
The last address (end address) of 1) is detected.

According to the half method, an arbitrary reference address on the optical disk is accessed, and if there is a reproduction signal, a half position of the start address and the reference address is accessed, and if there is a reproduction signal, another half position is accessed. This is a method of gradually narrowing the area.

Proceeding to step 14, track (X + 1)
Start address and end address (end address)
Is performed as the track information of the track (X + 1) in the PMA area, and the process ends.

Next, a description will be given of a track recovery process in which the CD-R drive performs recording based on a predetermined standard of the CD-R disc at the time of the mounting process described above. In the track recovery processing in step 14 of the mounting processing described above, the track information (start address and end address of the track) obtained based on the break of the reproduction signal in the program area of the CD-R disc is recorded as it is. When data is recorded on a disc, the data must be recorded in accordance with a predetermined standard, or the recorded data cannot be reproduced.

Therefore, during the mounting process described above, the CD-
It is preferable to execute a track recovery process for recording based on a predetermined standard of the R disk. FIG. 8 is a flowchart showing the track recovery processing.

Here, a case where the processing is executed in place of step 14 in FIG. 7 will be described. In step 21, track end position information including a start address and a final address (end address), which is a break of a reproduction signal of track (X + 1) not recorded in the PMA area of the CD-R disc, is obtained. The information is stored in the DRAM, and the process proceeds to step 22 where the DRA
The track length "Y" of the track (X + 1) is calculated and determined from the track end position information (start address and end address) in M, and the process proceeds to step 23 to determine whether the track length "Y" is less than 300 sectors. to decide.

The CD-R disc is defined by the standard book "Orange Book" as having a minimum track length of 300 sectors or more. Therefore, in a CD-R drive conforming to the Orange Book standard, the track length of a track that has been successfully recorded on a CD-R disc is 30.
It can be determined that the number is equal to or more than 0 sectors. Further, even if a track having a track length of less than 300 sectors is recorded on a CD-R disc, some error occurs during recording, and the recording fails.

The track length "Y"<
If 300, go to step 24 to track (X + 1)
Is determined as an error track, an error flag is set for the track (X + 1), the error flag for the track (X + 1) is stored and stored in the DRAM, and the process proceeds to step 25 where a dummy is added to the end of the track (X + 1). The data is recorded, a track area of 300 sectors including the track (X + 1) and the dummy data is formed, and the end address of the track area is obtained.

On the other hand, if the track length "Y" is equal to or more than 300 sectors in the judgment of step 23, the process proceeds to step 30, where the last address (end address) of the track (X + 1) is reached.
The vicinity is reproduced, and the process proceeds to step 31 to determine whether or not there is a run-out block based on the reproduction result.

For a CD-R disc, the above-mentioned standard "Orange Book" specifies that a run-out block of two sectors must be recorded at the end of a track. Therefore, a track having no two-sector run-out block at the end can be determined to have some error during recording.

If there is no run-out block in the determination at step 31, the process proceeds to step 32, where the track (X +
1) is determined as an error track in which an error has occurred during recording, an error flag is set as error information on the track (X + 1), the error flag for the track (X + 1) is stored and stored in the DRAM, and the process proceeds to step 26. move on. On the other hand, if there is a run-out block in the determination in step 31, it is determined that the track has been correctly recorded according to the standard, and the process proceeds to step 26.

In step 26, track information including the start address and end address of track (X + 1) is recorded. At this time, the track (X +
When the track length “Y” in 1) is less than 300 sectors,
A start address and an end address of a track (track length is 300 sectors) composed of track (X + 1) and dummy data are recorded, and a track length "Y" of track (X + 1) is 300 sectors or more and a run-out block of 2 sectors at the end. , The start address and end address of the track (X + 1) are recorded. If the track length “Y” of the track (X + 1) is 300 sectors or more and there is no two-sector run-out block at the end, the track (X + 1) Record the start address and end address of

The flow advances to step 27 to determine whether or not the recording of track information in the PMA area has failed. If the recording has failed, the flow advances to step 28 to determine whether or not retry over has occurred. This determination is made as to whether track information has been retried (re-recorded) to the PMA area a predetermined number of times.
If the retry is not over, return to step 26 and return to PM
The track information is re-recorded in the area A, and the process proceeds to step 27 to determine whether or not the recording has failed.

As described above, when the recording of the track information in the PMA area has failed, the re-recording of the track information in the PMA area is repeated in steps 26 to 28.
Until the recording in the PMA area succeeds, re-recording of a predetermined number of times: the number of retries is executed.

When the retry is over in the judgment of step 28 and the track information cannot be recorded in the PMA area even after the re-recording of the predetermined number of times is performed, the flow advances to step 29 to set a mount error on the CD-R disc. do it,
This processing ends.

If the track information has been successfully recorded in the PMA area in step 27, the flow advances to step 33 to determine whether or not an error flag has been set in the DRAM. Then, it is determined that the recording of the track has succeeded, and this processing ends.

If the error flag has been set in the DRAM in the judgment of step 33, the flow advances to step 34 to set read protection information as reproduction prohibition information for prohibiting reproduction of the track (X + 1), and then to step 35, the PM
The buffer area immediately before the A area, its track (X + 1)
Is recorded, and the process ends. This read protection information is recorded in a buffer area provided in the count area 51 of the PCA area 21 of the CD-R disc, as shown in FIG.

If an error occurs during recording of a track on a CD-R disc, the track is incomplete and all data cannot be reproduced correctly. Therefore, if the read protection information for the error track is recorded, it is not necessary to execute the reproduction of the track that has recognized the read protection information at the time of remounting the CD-R disc.

Next, the CD subjected to the mounting process described above
-When an R disk is used in a read-only device, an error track cannot be recognized. This is because, in a read-only device, when mounting an optical disc such as a CD-R or CD-ROM, only the TOC information is reproduced to obtain track information.
This is because the read protection information recorded in the buffer area cannot be referred to.

Therefore, when closing a session in which an error track exists, the TOC data may be rewritten so as not to refer to the error track. FIG.
8 is a flowchart showing a session closing process after the mounting process shown in FIG.

This processing is based on the SCS of the instruction for recording the lead-in area and the lead-out area when the session is closed.
I command: Processing by a Fixation command. In step 41, the session number (No.) of the session in which the lead-in area and the lead-out area are not recorded (referred to as "open session") is confirmed, and the flow advances to step 42 to change the track number of the track in the session. The number of tracks is obtained, and a TOC table is created from the track information.

The process proceeds to a step 43, wherein it is determined whether or not there is a track to which the read protection is set in the session based on the read protection information of the buffer area. Proceeding to step 44, the track information of the track for which read protection is set is erased from the TOC table, and proceeding to step 45, the track number of the track following the track for which read protection is set is incremented by one. Execute the process.

In the number changing process, for example, the track with the track number (X + 1) is an error track,
The following track is the track number (X + 2),
In the case of (X + 3),..., The track number of the subsequent track is incremented by one, and the track number (X + 3)
1), (X + 2),... In this way,
Clearly remove error tracks in the session.

Proceeding to step 46, a TOC table, which is actual TOC information based on the above processing, is created. Proceeding to step 47, the lead-in area recording processing is executed. Proceeding to step 48, the lead-in area recording processing has an error. It is determined whether or not to end. If the lead-in area recording process ends in an error for some reason in the judgment in step 48, the process proceeds to step 51, where an error code corresponding to the error state is set, and this process ends.

If it is determined in step 48 that the error has not ended, the process proceeds to step 49 to execute the lead-out area recording process, and proceeds to step 50 to determine whether or not the lead-out area recording process has ended in error. If it is determined in step 50 that the error has occurred in the lead-out area recording processing for some reason, the process proceeds to step 51, where an error code corresponding to the error state is set, and this processing ends. If the determination in step 50 is not an error end, this process ends.

In this CD-R drive, a track in which track information such as a start address and an end address is not recorded in the PMA area of the CD-R disc in the program area is used for mounting processing when the CD-R disc is inserted. , The track information of the track is detected and recorded in the PMA area, so that a new track can be added after the track, and the CD-R
Free space on the disk can be used effectively.

If there is a track on the CD-R disk whose track length does not reach the minimum standard value defined by the Orange Book: 300 sectors, it is determined that some kind of write error has occurred during the recording of the track. Since the track length of the track is restored to 300 sectors and recorded, a new track can be added after the track.

Further, by adding dummy data and prohibiting the reproduction of an error track having a track length satisfying the minimum standard value: 300 sectors, the host computer, reproduction application software, CD-ROM for reproducing the error track. The useless processing time of the R drive can be reduced, and the working efficiency can be improved.

Also, even if the track length satisfies the minimum standard value: 300 sectors, the reproduction of the error track for which the predetermined run-out block could not be detected is prohibited, so that the host computer can reproduce the error track and reproduce the error track. Application software, CD
-It is possible to reduce unnecessary processing time of the R drive,
Work efficiency can be improved.

Further, an error track having a track length satisfying the minimum standard value: 300 sectors by additionally writing dummy data on the CD-R disk, and a predetermined run-out even if the track length satisfies the minimum standard value: 300 sectors Reproduction prohibition information for an error track for which a block could not be detected: By recording read protection information on the CD-R disc, reproduction of the track is prohibited based on the reproduction prohibition information even when the CD-R disc is remounted. It is possible to reduce unnecessary playback processing time of the host computer, the playback application software, and the CD-R drive, and to improve work efficiency.

Further, when the data is reproduced by the reproduction-only device, dummy data on the CD-R disk is additionally recorded to make the error track a track length satisfying the minimum standard value of 300 sectors, and the track length is set to the minimum standard value: 300 sectors. It is possible to make it impossible to refer to the error track for which the predetermined run-out block has not been detected even if the sector is satisfied, and to make it impossible to reproduce the error track, thereby avoiding a problem caused by reproducing the error track.

[0103]

As described above, according to the information recording / reproducing apparatus of the present invention, even if a track on which track information is not recorded in the program memory area of the recordable optical disc is located in the program area, Additional writing can be made possible.

[Brief description of the drawings]

FIG. 1 is a block diagram of an information recording / reproducing apparatus according to an embodiment of the present invention;
FIG. 2 is a block diagram illustrating a configuration of a DR drive.

FIG. 2 is a CD used in the CD-R drive shown in FIG.
It is an explanatory view showing an example of a format of a -R disc.

FIG. 3 is an explanatory diagram showing an example of a format of a PCA area of the CD-R disc shown in FIG.

FIG. 4 is a CD used in the CD-R drive shown in FIG.
It is an explanatory view showing an example of a track format of a -R disc.

FIG. 5 is an explanatory diagram of information recorded in a PMA area of the CD-R disc shown in FIG.

6 is an explanatory diagram of TOC data recorded in a lead-in area of the CD-R disc shown in FIG.

7 is a flowchart showing a mounting process for acquiring and recording unrecorded track information in a PMA area of an optical disc into which the CD-R drive shown in FIG. 1 has been inserted.

8 is a flowchart showing a track recovery process for recording based on a predetermined standard of a CD-R disc at the time of the mounting process shown in FIG. 7;

FIG. 9 is a flowchart showing a session closing process after the mounting process shown in FIG. 7;

[Explanation of symbols]

 1: User microcomputer (CPU) 2: Flash ROM 3: Host interface (I / F) controller 4: Buffer manager 5: DRAM 6: Subcode operation controller 7: CD-ROM encoder 8: SRAM 9: CD-ROM decoder 10: Audio controller 11: System controller 12: CD encoder 13: CD decoder 14: Servo 15: Spindle controller 20: Optical disk 21: Power calibration area (PCA area) 22: Program memory area (PMA area) 23: Lead-in area 24: Program area 25: Track 26: Lead-out area 30: Session 40: Pre-gap area 41: User data area 42: Run-out area 43: Link area 44: run-in area 50: a test area 51: count area: buffer area Start address end address

Claims (6)

[Claims] 1. An information recording / reproducing apparatus comprising means for recording and reproducing data in track units on a recordable optical disk, wherein track information is stored in a program memory area by mounting processing when an optical disk on which data is recorded is inserted. Means for detecting a track on which no data is recorded in the program area, detecting a start address and an end address of the detected track, and adding track information including the detected start address and end address to the program memory area. An information recording / reproducing device, characterized in that it is provided. 2. An information recording / reproducing apparatus comprising means for recording and reproducing data in track units on a recordable optical disk, wherein track information is stored in a program memory area by a mounting process when an optical disk on which data is recorded is inserted. When a track on which no data is recorded is detected in the program area, it is determined whether or not the length of the detected track satisfies a minimum standard value. Dummy data is added from the end of the track to be extended to a track length satisfying the minimum standard value, a start address and an end address of the extended track are detected, and track information including the detected start address and end address is obtained. A means for additionally writing in the program memory area is provided. Information recording and reproducing apparatus to be. 3. The information recording / reproducing apparatus according to claim 2, further comprising means for setting reproduction prohibition for a track of the additionally written track information. 4. An information recording / reproducing apparatus comprising means for recording and reproducing data in track units on a recordable optical disk, wherein track information is stored in a program memory area in a mounting process when an optical disk on which data is recorded is inserted. When a track in which is not recorded is detected in the program area, it is determined whether or not the length of the detected track satisfies the minimum standard value.If the track satisfies the minimum standard value, the vicinity of the end address of the track is determined. Playback is performed, and if a run-out block cannot be detected, it is determined that the track is an error track, the start address and end address of the detected track are detected, and track information including the detected start address and end address is added to the program memory area. The track information that was added Information recording and reproducing apparatus characterized in that a means for setting a reproduction inhibition against. 5. The information recording / reproducing apparatus according to claim 3, further comprising means for recording, on the inserted optical disc, reproduction prohibition information indicating the setting of the reproduction prohibition. apparatus. 6. The information recording / reproducing apparatus according to claim 1, wherein when an error track is present in a session in which a lead-in area and a lead-out area on the optical disc are not recorded. An information recording / reproducing apparatus, comprising: means for erasing the index information of the error track, and subtracting one from the track number of a track subsequent to the error track for recording.