KR20040082024A - Recording method, recording apparatus, optical recording medium and computer readable recording medium storing a program for performing the recording method - Google Patents

Abstract

PURPOSE: A recording method is provided to separate the rest temporary defect information except temporary defect information as many as multiples among entire temporary defect information, and to record the separated defect information, thereby effectively reading the temporary defect information while saving the capacity of a temporary defect information region. CONSTITUTION: A system continuously records temporary defect information as many as multiples among entire temporary defect information in at least a portion of an optical recording medium(410). The system continuously or discontinuously records the rest temporary defect information in the portion where the temporary defect information as many as the multiples is recorded(420). The system records size information of the temporary defect information as many as the multiples, information related to a position at which the temporary defect information is recorded, and information related to a position at which the rest temporary defect information is recorded in the optical recording medium(430).

Description

Recording method, recording apparatus, optical recording information storage medium, and a computer readable recording medium having recorded thereon a program for performing the recording method and a computer readable recording medium storing a program for performing the recording method }

The present invention relates to a method for recording defect management information, a recording apparatus, an optical record information storage medium and a computer readable recording medium having recorded thereon a program for performing the recording method in the field of performing defect management by a drive.

Defect management refers to a process of supplementing data loss due to defects by rewriting user data recorded in a portion where a defect occurs when a defect occurs in user data recorded in the user data area. Conventionally, defect management is largely divided into a defect management method using linear replacement and a defect management method using skipping replacement. Linear replacement means that when a defect occurs in the user data area, the defective area is replaced with an area where a defect in the spare area does not occur. Skipping refers to the use of areas skipped without using the defective areas, followed by areas that are not defective.

Both the linear replacement method and the skip method are applicable only to discs capable of repeatable recording such as DVD-RAM / RW and recording by the random access method. In other words, the conventional linear replacement method and the skip method are difficult to apply to a write once disc which can only be written once. This is because whether or not a defect has occurred is confirmed by actually recording data.

Recently, high-density write once discs with recording capacities of several tens of GB have been proposed following CD-R, DVD-R, and the like. These disks can be used for backup because they are relatively inexpensive, have random access when reading data, and have relatively fast read speeds. However, since defect management is not performed for the write once disk, if a defective area is generated during backup, the backup cannot be continued and is interrupted. Since backups occur, especially at times when the system is not used frequently, usually at night when there are no administrators, it is likely that backups will no longer be performed if a backup is interrupted due to a faulty zone.

The write once storage information storage medium which implements defect management by a drive is provided with regions for recording information for defect management on a defect occurring during the use of a disc and information indicating a recording state of the disc. If the information is required to be updated once due to the characteristics of the recording medium, a relatively large area is required in order to guarantee a certain number of updates because the information cannot be overwritten with the rewritable apparatus.

On the other hand, in the defect management method by the drive, the defect information obtained as a result of performing the post-write verification operation is temporarily stored as temporary defect information, and when data recording is completed on the disk, that is, no further data is recorded on the disk. In the case of finalizing, the temporary defect information recorded on the disk and the temporary defect management information, which is information on the position of the temporary defect information, are recorded in the defect management area provided on the disk.

1A is a reference diagram for explaining an example of a method of recording temporary defect information according to the related art. The method shown in FIG. 1A describes a general method of accumulating and recording temporary defect information.

The temporary defect information is updated in units of recording operations. Here, the operation unit may be one or a plurality of verify-after-write units that record and verify predetermined sectors or clusters, or after recording / reproducing by inserting a disc into a drive It may also be an eject unit.

Referring to FIG. 1A, information about defect # 0 is recorded in recording operation # 1, and information about defect # 0 is accumulated in recording operation # 2, that is, information about defect # 1 together with information about defect # 0. Record information, accumulate information on defect # 0 and information on defect # 1 in recording operation # 3, record information on defect # 2, and record information on defect # 0 in recording operation # 4, defect # The information on defect # 3 is recorded by accumulating the information on 1 and the information on defect # 2. The same applies to the remaining recording operation # 5 and the recording operation # 6.

In such a temporary defect information recording method, as the number of updates is repeated, the amount of the temporary defect information gradually increases. Therefore, in this case, as the size of the temporary defect information increases, the number of clusters occupying one record increases, and the temporary defect information area for the entire temporary defect information increases.

As a way to solve this problem, there is a method of recording only defect information generated in the corresponding recording operation, not accumulating temporary defect information.

1B is a reference diagram for explaining another example of a method of recording temporary defect information according to the related art. The method shown in Fig. 1B is a method of recording only temporary defect information generated in the corresponding recording operation.

Referring to FIG. 1B, the recording operation # 1 records information about defect # 0 occurring in the corresponding recording operation # 1, and the recording operation # 2 records only information about defect # 1 occurring in the recording operation # 2 and records the recording. In operation # 3, only information on defect # 2 that occurred in recording operation # 3 is recorded. In this way, only the defect information generated in the corresponding recording operation is recorded for each operation.

According to this method, the size of the area for recording the temporary defect information can be reduced. However, in order to obtain the final temporary defect information, this method starts from the beginning of the temporary defect information area, that is, from the part where the information on defect # 0 is recorded. Since it is necessary to go through a process of reading and arranging all the recorded portions of the updated information, there is a problem that it takes time and complexity to reproduce the data.

An object of the present invention is to provide a recording method, a recording apparatus, and an optical recording storage medium for effectively reading out temporary defect information while solving the above problems and saving the capacity of the temporary defect information area.

1A is a reference diagram for explaining an example of a method of recording temporary defect information according to the related art;

1B is a reference diagram for explaining another example of a method of recording temporary defect information according to the prior art;

2 is a schematic block diagram of a recording apparatus according to the present invention;

3 is a detailed configuration diagram of the recording apparatus shown in FIG. 2 according to the present invention;

4 is a flowchart showing a process of a recording method according to the present invention;

5 is a reference diagram for explaining an example of positions of a temporary defect information area in which temporary defect information is recorded and a temporary defect management area in which temporary defect management information is recorded according to the present invention;

6 is a reference diagram for explaining information recorded in the temporary defect information area and the temporary defect management area according to the present invention;

7 is a reference diagram for explaining the temporary defect management information recorded in the temporary defect management area according to the present invention;

8 is a flowchart specifically showing a process of a recording method according to the present invention;

9 is a reference diagram for explaining temporary defect information recorded in a first step according to the recording method shown in FIG. 8;

FIG. 10 is a reference diagram for explaining temporary defect information recorded in a second step according to the recording method shown in FIG. 8;

FIG. 11 is a reference diagram for explaining temporary defect information recorded in a third step according to the recording method shown in FIG. 8; FIG.

One feature of the present invention for solving the above problems is the temporary defect information as much as a multiple (N = 0,1,2 ...) of a predetermined size K among the total temporary defect information and the total temporary defect. A recording method, a recording apparatus, and an optical recording information storage medium for separating and recording remaining temporary defect information other than the temporary defect information by a multiple of the predetermined size among the information are provided.

Preferably, the size (K × N) information of the temporary defect information by the multiple of the predetermined size, the position information on which the temporary defect information by the multiple of the predetermined size is recorded, and the position where the remaining temporary defect information is recorded. Information can be further recorded on the optical recording medium.

The optical recording medium includes a write once information storage medium.

Another feature of the present invention is to continuously record temporary defect information in the area of at least a portion of the optical recording medium in multiples (N = 0,1,2 ...) of a predetermined unit size K among all temporary defect information. And the remaining temporary defect information of the entire temporary defect information, except for the temporary defect information in multiples of the predetermined size, is accumulated and recorded for each operation until the size of the remaining temporary defect information becomes the predetermined size (K). A method, a recording device, and an optical record information storage medium are provided.

Preferably, the size (K × N) information of the temporary defect information by the multiple of the predetermined size, the position information on which the temporary defect information by the multiple of the predetermined size is recorded, and the position where the remaining temporary defect information is recorded. The information is further recorded on the optical recording medium.

Further, preferably, when the size of the remaining temporary defect information to be recorded in the operation is the predetermined size K, the temporary defect information and the predetermined size K as much as a multiple of the predetermined size K × N. The remaining temporary defect information is further continuously recorded in at least a portion of the area of the optical record carrier.

Further, preferably, the size (K × N + K) information of the continuously recorded temporary defect information and the positional information on which the continuously recorded temporary defect information is recorded are further recorded.

According to still another aspect of the present invention, the temporary defect information equal to a multiple of a predetermined unit size K (N = 0,1,2 ...) in the total temporary defect information and the multiple of the predetermined size in the total temporary defect information. Separating and recording the remaining temporary defect information except for the temporary defect information, the size (K × N) information of the temporary defect information by the multiple of the predetermined size, and the temporary defect information by the multiple of the predetermined size A computer readable recording medium having recorded thereon a program for performing a recording method comprising recording the recorded positional information and the positional information on which the remaining temporary defect information is recorded on the optical recording medium.

The present invention will now be described in detail with reference to the accompanying drawings.

2 is a schematic block diagram of a recording / reproducing apparatus according to the present invention.

Referring to Fig. 2, the recording apparatus includes a recording / reading section 1, a control section 2 and a memory section 3. The recording / reading section 1 records data on the disk 100, which is an information storage medium according to the present embodiment, and reads data to verify the recorded data. The control unit 2 performs defect management according to the present invention. In this embodiment, the control unit 2 conforms to the "verify after write method" in which the defect is found by recording the data in predetermined units and then verifying the recorded data. The control unit 2 records user data in units of one recording operation and then verifies it to check where a defect area occurs. The control unit 2 generates defect information indicating where the defect area is found as a result of the inspection, stores the generated defect information in the memory unit 3, collects a predetermined amount, and records the defect information on the disc 100 as temporary defect information.

The recording operation is a unit of work determined by a user's intention, a recording operation to be performed, and the like. In this embodiment, the disc 100 is loaded into a recording device to perform recording of predetermined data, and then the disc 100 is ejected. Until point. The verification operation after recording during one recording operation is performed at least once, usually a plurality of times. The defect information obtained as a result of performing the verification operation after recording is temporarily stored in the memory unit 3 as temporary defect information.

After the user completes recording of the predetermined data and then presses an eject button (not shown) provided in the recording apparatus to eject the disc 100, the control unit 2 predicts that one recording operation will be terminated. When it is predicted that the recording operation will be finished, the control section 2 reads the temporary defect information stored in the memory section 3, provides it to the recording / reading section 1, and instructs the disk 100 to record these information.

That is, when data recording is completed on the disc 100, that is, when no further data is to be recorded on the disc 100 (finalizing), the control unit 2 temporarily records the disc 100. The defect information and the temporary defect management information are recorded in the defect management area provided on the disc 100.

FIG. 3 is a detailed block diagram of the recording / reproducing apparatus shown in FIG. 2.

Referring to FIG. 3, the disc drive includes a pickup 250 as the recording / reading unit 220. The disc 230 is mounted on the pickup 250. The disk drive also includes a host I / F 211, a DSP 212, an RF AMP 213, a servo 214, and a system controller 215 as the controller 210.

In writing, the host I / F 211 receives a predetermined write command from the host and sends it to the system controller 215.

In the case of recording the temporary defect information, the system controller 215 records the temporary defect information corresponding to a multiple (N = 0, 1, 2 ...) of a predetermined unit size K among the total temporary defect information to be recorded and Control to separate and record the remaining temporary defect information from all the temporary defect information except for the temporary defect information by the multiple of the predetermined size. The system controller 215 further includes size (K × N) information of the temporary defect information as many as the multiple of the predetermined size, positional information on which temporary defect information as many as the multiple of the predetermined size is recorded, and the remaining temporary defect information. Control to record the recorded position information.

In other words, when recording the temporary defect information, the system controller 215 controls to accumulate and record the previous temporary defect information every operation until the amount of the temporary defect information to be recorded becomes a predetermined size.

When the amount of the temporary defect information exceeds the predetermined size, the temporary defect information of the predetermined size is not accumulated, and the previous temporary defect information is accumulated and recorded for every operation only for the remaining temporary defect information except for the predetermined size. .

When the temporary defect information other than the predetermined size becomes a predetermined size, control is made so that the temporary defect information of the predetermined size is combined with the previous predetermined size and continuously recorded. That is, control is made so that the temporary defect information of twice the predetermined size is recorded continuously.

The DSP 212 adds additional data such as parity for error correction to the data to be recorded received from the host I / F 211 and performs ECC encoding to generate an ECC block, which is an error correction block, and then, in a predetermined manner. Modulate. The RF AMP 213 converts the data output from the DSP 212 into an RF signal. The pickup 250 records the RF signal output from the RF AMP 213 on the disc 230. The servo 214 receives a command necessary for servo control from the system controller 215 and servo controls the pickup 250.

During playback, the host I / F 211 receives a playback command from the host 240. The system controller 215 performs initialization required for regeneration. Particularly, according to the present invention, the system controller 215 first controls to read a predetermined area of the disc on which the temporary defect management information is recorded, and finds the location of the temporary defect information from the read temporary defect management information to find the temporary defect information. Control to read.

The pickup 250 outputs an optical signal obtained by irradiating a laser beam on the disk 230 and receiving a laser beam reflected from the disk 230. The RF AMP 213 converts the optical signal output from the pickup 250 into an RF signal and provides modulated data obtained from the RF signal to the DSP 212, while providing a servo signal for control obtained from the RF signal. To provide. The DSP 212 demodulates the modulated data and outputs the data obtained through ECC error correction.

Meanwhile, the servo 214 receives the servo signal received from the RF AMP 213 and the command required for the servo control received from the system controller 215 to perform servo control on the pickup 250. The host I / F 211 sends data received from the DSP 212 to the host.

4 is a flowchart illustrating a process of a method of recording temporary defect information according to the present invention.

Referring to FIG. 4, temporary defect information in multiples of a predetermined size of all temporary defect information is continuously recorded on at least a portion of the optical recording medium (410).

For example, when the predetermined size K is "4", if the size of all temporary defect information exceeds "4", temporary defect information of "4" is continuously recorded, and all temporary defect information If the size of " exceeds "8, then " 8 " temporary defect information is continuously recorded.

Next, the temporary defect information of the entire temporary defect information to be recorded, except for the temporary defect information of the predetermined size, is stored in at least a portion of the optical recording medium in the area in which the temporary defect information of the predetermined size is recorded. Write continuously or discontinuously (420).

For example, when the predetermined size is set to "4" as in the above example, if the size of the entire temporary defect information does not exceed "4", it continues to accumulate until the size of the temporary defect information becomes "4". Record temporary defect information. When the size of the temporary defect information exceeds "4", the temporary defect information of "1" except for the predetermined size "4" continues in the next area of the area where the temporary defect information of the "4" is recorded. Can be recorded or discontinuously.

Then, the size information of the temporary defect information by the multiple of the predetermined size, the position information on which the temporary defect information by the multiple of the predetermined size is recorded, and the position information on which the remaining temporary defect information is recorded, are recorded on the optical recording medium. Write to (430). Such a recording method according to the present invention will be described later in detail with reference to FIG.

In this way, the temporary defect information of a predetermined size among all the temporary defect information and the remaining temporary defect information except the temporary defect information of the predetermined size are separately recorded, and the size and position information of the temporary defect information of the predetermined size and By recording the positional information of the remaining temporary defect information, it is possible to effectively find the temporary defect information by using the position and size information while reducing the capacity of the recording medium required for recording the temporary defect information.

5 is a reference diagram for explaining an example of positions of a temporary defect information area in which temporary defect information is recorded and a temporary defect management area in which temporary defect management information is recorded according to the present invention.

Referring to FIG. 5, the optical record information storage medium 500 includes a lead-in area 510, a data area 520, and a lead-out area 530.

The lead-in area 510 is located on the inner circumferential side of the disk 500 and the lead-out area 530 is located on the outer circumferential side of the disk 500. The data area is located between the lead-in area and the lead-out area. The data area is divided into a spare area and a user data area. The user data area is an area in which user data is recorded, and the spare area is a space provided to compensate for the loss of recording space due to a defect in the user data area, that is, a space provided for defect management, and the data recorded in the user data area. If a defect occurs, it is used as an alternative space to record a new portion of the defect.

The temporary defect management area is an area for recording information on a defect before finalizing according to the present invention, and includes a temporary defect management information area 511 and a temporary defect information area 512 according to the present invention.

Usually, when a disc is loaded into the apparatus, the recording or reproducing apparatus reads information in the lead-in area and the lead-out area to figure out how to manage the disc and how to record or play it. The larger the information recorded in the lead-in area and / or the lead-out area, the longer the time required for loading the disc and then preparing for recording or playback occurs. Therefore, the present invention introduces the concept of temporary defect management information and temporary defect information and records them in a temporary defect management area provided separately from the defect management area of the lead-in area and / or the lead-out area.

When data is no longer needed to be written to the disc (when finalizing), the recording or playback device can move the disc in the future by moving only the meaningful information of the temporary defect management information and the temporary defect information updated and recorded several times to the defect management area. This is because when the defect management information is read from the defect management area, only the last meaningful information can be read and the initialization can be performed more quickly. The advantage of the reliability of the information can be improved by recording the defect management information in a plurality of places. Because of this.

In the present embodiment, since defect management is in accordance with the linear substitution scheme, the temporary defect information is composed of information indicating where the defect is generated and information indicating where the newly replaced region is. The temporary defect management information is information for managing the temporary defect information and includes information for indicating a location where the temporary defect information is recorded. More preferably, the information further includes information indicating a position at which user data was last recorded in the user data area and information indicating a position of the last replaced area of the spare area. Detailed data structures of the temporary defect information and the temporary defect management information will be described later.

In this embodiment, the temporary defect information and the temporary defect management information are recorded each time the recording operation ends. In the temporary defect management area, information on defects occurring in the data recorded during recording operation # 0 and information on the replacement area is recorded as temporary defect information # 0, and data recorded while recording operation # 1 is performed. The information on the defect and the information on the replacement area generated in " n " Further, in the temporary defect management area, management information for managing the temporary defect information # 0, # 1, ... is recorded as the temporary defect management information # 0, # 1, .... If data can no longer be written to the data area or if you no longer want to write data to the data area, that is, when finalizing, the defect information that was recorded in the temporary defect information area and the temporary defect management information area will be deleted. The defect management information that has been recorded is finally recorded in the defect management area.

In this embodiment, defect information recorded in the previous temporary defect information # 0, # 1, # 2, ..., # i-1 is accumulated and recorded in any temporary defect information #i. Therefore, when finalizing, it is sufficient to read only the defect information recorded in the last temporary defect information #i and write it to the defect management area again.

An area in which the temporary defect management information #i is recorded is preferably about 1 cluster in the case of a disk capable of recording a high density of tens of gigabytes, and an area in which the temporary defect information #i is recorded is preferably allocated about 4-8 clusters. This is because the size of the information recorded as the temporary defect information #i is only a few KBytes, but when the minimum physical recording unit of the disk is a cluster, it is preferable to record in cluster units in order to record new information for updating. . On the other hand, the total amount of defects allowed for the disk is preferably about 5 percent of the disk recording capacity. In this case, about 8 bytes of information are needed to record information about one defect, and considering that the size of the cluster is 64K bytes, approximately 4-8 clusters are needed for temporary defect information #i.

The temporary defect management information area 511 and the temporary defect information area 512 according to the present invention may be provided in any one of the lead-in area 510, the data area 520, and the lead-out area 530. .

That is, the temporary defect management information and the temporary defect information according to the present invention may be updated in the unit of operation in the temporary defect management information area and the temporary defect information area provided in at least one of the lead-in area, data area, and lead-out area. Alternatively, the temporary defect management information and the temporary defect information can be updated in the unit of operation in the temporary defect area provided in at least one of the lead-in area, the data area, and the lead-out area, or the lead-in area, the data area. The temporary defect management area may be provided in at least one area of the lead-out area, and the temporary defect information area may be provided in another area and updated in an operation unit.

For example, as shown in FIG. 5, the temporary defect management area 511 and the temporary defect information area 512 are separately provided in the lead-in area 510 to provide the temporary defect management information and the temporary defect information on an operation basis, respectively. The temporary defect area may be updated in the lead-in area 510, and the temporary defect management information and the temporary defect information may be updated together in the operation unit, or the temporary defect management area may be provided in the lead-in area 510. The temporary defect information area may be provided in the data area 520 and updated in the operation unit.

In addition, the above-mentioned temporary defect management information and the temporary defect information may be recorded more than once in the same area, or the temporary defect management information and the temporary defect information may be recorded more than once in different areas for the sake of robustness.

6 is a reference diagram for explaining information recorded in the temporary defect information area and the temporary defect management area according to the present invention.

Referring to FIG. 6, a keep #i TDFL 611 and a step # i + 1 TDFL 612 are recorded in the temporary defect information area 610.

The keep #i TDFL refers to temporary defect information that is continuously recorded at one time as temporary defect information of multiples of a predetermined size among all temporary defect information. Of course, if the total temporary defect information is smaller than a predetermined size, the keep #i TDFL cannot be recorded.

Step # i + 1 TDFL refers to the temporary defect information other than the temporary defect information of a predetermined number of all temporary defect information.

The temporary defect management area 620 records position information 621 of the keep #i TDFL, size information 622 of the keep #i TDFL, and position information 623 of the step # i + 1 TDFL.

The position information 621 of the keep #i TDFL indicates the position where the keep #i TDFL is recorded on the disc, and the size information 622 of the keep #i TDFL indicates the size of the keep #i TDFL, and the step # i + 1TDFL The position information 623 indicates the position where the step # i + 1 TDFL is recorded on the disk.

In this way, the temporary defect is generated only by the position information 621 of the keep #i TDFL recorded in the temporary defect management information area, the size information 622 of the keep #i TDFL, and the position information 623 of the step # i + 1 TDFL. Since the temporary defect information recorded in the information area can be found, the temporary defect information can be found quickly and the space for recording the temporary defect information can be saved.

7A illustrates the structure of TDFL #i by way of example.

The arbitrary temporary defect information TDFL #i stores the identifier of TDFL #i, and information about defect # 1, defect # 2, ..., defect #k. The information about defect # 1, defect # 2, ..., defect #k is status information indicating where the defect is generated and where the replaced part is.

Referring to FIG. 7A, information regarding defect # 1, information about defect # 2, and information about defect # 3 are recorded in TDFL # 0. The information about the defect # 1 refers to information indicating where the portion where the defect # 1 has occurred is located and information indicating where the portion where the replacement # 1 is recorded is located. Similarly, information about defect # 2 indicates where the portion where defect # 2 occurred is located and information about where the replacement # 2 is recorded is located, and information about defect # 3 indicates defect # 3. This information indicates where the generated part is located and information that indicates where the recorded part # 3 is located.

The temporary defect information TDFL # 1 includes all the information recorded in TDFL # 0, and also records information about defect # 4 and information about defect # 5. That is, TDFL # 1 has all the defect information that has occurred so far, that is, information about defect # 1, information about defect # 2, information about defect # 3, information about defect # 4, and information about defect # 5. Are all recorded.

7B shows a data structure of information regarding defect #i.

Referring to FIG. 7B, in this embodiment, the information about defect #i includes a pointer indicating defect #i and a pointer indicating replacement #i.

The fault #i pointer indicates where the fault #i starts and / or ends. For example, the defect #i pointer may include the physical sector number where defect #i begins. The alternate #i pointer indicates where the alternate #i begins and / or where the alternate #i ends. For example, it may include the physical sector number where the replacement #i begins. The physical sector means space for recording one sector of data on the disk. The address for finding a physical sector is called a physical sector number (PSN).

7C is a data structure diagram of the temporary defect management information TDDS #i recorded in the temporary defect management area according to the present invention.

Referring to FIG. 7C, the temporary defect management information TDDS #i indicates the identifier of the TDDS #i, the TDDS update counter, the disk and drive information pointer, the latest step TDFL pointer, the latest keep TDFL pointer, and the latest keep TDFL size. Include.

The TDDS #i identifier is an identifier indicating the temporary defect management information TDDS #i, the TDDS update counter is a counter value that counts the number of times the temporary defect management information has been updated, and the disk and drive information pointers are used for recording and / or playback. Tells information about the drive.

The latest step TDFL pointer is information indicating the position at which the latest step TDFL was recorded on the disc. The latest keep TDFL pointer is information indicating the position at which the latest keep TDFL was recorded on the disc. The latest keep TDFL size indicates the size of the latest keep TDFL. Information.

8 is a flowchart specifically showing a process of a recording method according to the present invention. Hereinafter, the procedure of the recording method will be described with reference to the examples shown in FIGS. 9 to 11.

Referring to FIG. 8, first, when the size of the temporary defect information to be updated does not exceed K, the temporary defect information is accumulated by recording the temporary defect information (810). The location of the last temporary defect information is recorded in the temporary defect management area (820). In the following examples, K is assumed to be 4.

Referring to FIG. 9, in operation # 1, a TDFL # 0 901 including information about defect # 0 is recorded in the temporary defect information area. TDFL #i will be referred to as step # 1 TDFL until the size of TDFL #i does not exceed a predetermined size, that is, "4". Then, the TDDS # 0 corresponding to the TDFL # 0 records the location information in which the step # 1 TDFL pointer, that is, the TDFL # 0 is recorded.

Next, in operation # 2, the information on defect # 0 is accumulated and TDFL # 1 902 including information on defect # 1 is recorded in the temporary defect information area. Then, the TDDS # 1 corresponding to the TDFL # 1 records the position information in which the step # 1 TDFL pointer, that is, the TDFL # 1 is recorded.

Next, in operation # 3, the information on defect # 0 and the information on defect # 1 are accumulated, and TDFL # 2 903 including information on defect # 2 is recorded. The TDDS # 2 corresponding to the TDFL # 2 records the location information in which the step # 1 TDFL pointer, that is, the TDFL # 2 is recorded.

Next, referring to FIG. 10, TDFL # 3 904 including information on defect # 3 by accumulating information on defect # 0, information on defect # 1, and information on defect # 2 in operation # 4. Record it. In this case, TDFL 3 904 having a predetermined size filled is referred to as keep # 1 TDFL. In addition, position information on which the keep # 1 TDFL pointer, that is, the TDFL # 3 is recorded, and size information of the keep # 1 TDFL are recorded in the TDDS # 3 corresponding to the TDFL # 3. Of course, in this case, since the last temporary defect information is keep # 1 TDFL, it may be possible to record only keep # 1 TDFL pointer as in operation # 3.

Next, when the size of the temporary defect information to be updated exceeds K, the temporary defect information (keep # 1 TDFL) having a predetermined size is recorded in the temporary defect information area, and the remaining temporary defect information except for the keep # 1 TDFL (step). # 2 TDFL) is immediately recorded in the next temporary defect information area (830). The size and position of the keep # 1 TDFL and the position of the step # 2 TDFL are recorded in the temporary defect management area (840).

Referring to FIG. 10, in operation # 5, a TDFL # 4 905 including information on defect # 4, which is temporary defect information other than the keep # 1 TDFL 904, is recorded. TDFL # 4 becomes Step # 2 TDFL. The keep # 1 TDFL pointer, that is, the position information on which the TDFL # 3 is recorded, the size information of the keep # 1 TDFL, and the step # 2 TDFL pointer are recorded in the TDDS # 4 corresponding to the TDFL # 4.

Similarly to operation # 5, operation # 6 accumulates information about defect # 4, which is temporary defect information other than keep # 1 TDFL 904, and stores TDFL # 5 906 including information about defect # 5. Record in the temporary defect information area. The keep # 1 TDFL pointer, that is, the position information where the TDFL # 3 is recorded, the size information of the keep # 1 TDFL, and the step # 2 TDFL pointer are recorded in the TDDS # 5 corresponding to the TDFL # 5. Here, the step # 2 pointer refers to the position where TDFL # 5 is recorded.

Similarly, in operation # 7, the TDFL # 6 including information about defect # 4, which is information on defect # 4, which is temporary defect information other than keep # 1 TDFL 904, and information on defect # 5 are accumulated. Record (907). The keep # 1 TDFL pointer, that is, the position information on which the TDFL # 3 is recorded, the size information of the keep # 1 TDFL, and the step # 2 TDFL pointer are recorded in the TDDS # 6 corresponding to the TDFL # 6. Here, the step # 2 pointer refers to the position where TDFL # 6 is recorded.

In this manner, the cumulative recording is performed until the size of the temporary defect information (step # 2 TDFL) other than the keep # 1 TDFL does not exceed the size of K, and the size and position of the keep # 1 TDFL and the step # 2 TDFL are The location is recorded in the temporary defect management information area (850).

Next, if the size of the step # 2 TDFL exceeds the predetermined size, the keep # 1 TDFL and the K size step # 2 TDFL are arranged in the temporary defect information area, and the keep # 2 TDFL having a size of 2K is recorded, and the next temporary In the defect information area, the temporary defect information (step # 3 TDFL) excluding the keep # 2 TDFL of all the temporary defect information is recorded (860). The position and size of the keep # 2 TDFL and the position of the step # 3 TDFL are recorded in the temporary defect management information area (870).

Referring to FIG. 11, in operation # 8, a TDFL including information about defect # 7 should be recorded. If information about defect # 7 is included in TDFL # 6 907 recorded in operation # 7, step # 2 TDFL The size of is filled to a predetermined size. In this case, the step # 2 TDFL filled with the predetermined size is aligned with the keep # 1 TDFL and recorded as the keep # 2 TDFL at once. That is, in operation # 8 in FIG. 11, the TDFL # 7 908 including the information about the defect # 0 to the information about the defect # 7 is continuously recorded all at once in the temporary defect information area. Then, the position information where the keep # 2 TDFL pointer, that is, the TDFL # 7 is recorded, and the size information of the keep # 2 TDFL are recorded in the TDDS # 7 corresponding to the TDFL # 7. As described above, by recording the temporary defect information of a unit of a predetermined size in succession at once, it is not necessary to search several positions of the temporary defect information area in order to find the final temporary defect information during reproduction.

Similarly to Step # 2, Step # 3 accumulates until the size of the temporary defect information (Step # 3 TDFL) except for the Keep # 2 TDFL does not exceed K. The size, position, and step of the Keep # 2 TDFL are recorded. The location of the # 3 TDFL is recorded in the temporary defect management information (880).

The reproduction method as described above can also be embodied as computer readable codes on a computer readable recording medium. Computer-readable recording media include all kinds of recording media on which data that can be read by a computer system is stored. Examples of computer-readable recording media include ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage, and the like, and may also be implemented in the form of a carrier wave (for example, transmission over the Internet). Include. The computer readable recording medium can also be distributed over network coupled computer systems so that the computer readable code is stored and executed in a distributed fashion. In addition, functional programs, codes, and code segments for implementing the recording method can be easily inferred by programmers in the art to which the present invention belongs.

So far I looked at the center of the preferred embodiment for the present invention. Those skilled in the art will appreciate that the present invention can be implemented in a modified form without departing from the essential features of the present invention. Therefore, the disclosed embodiments should be considered in descriptive sense only and not for purposes of limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

According to the configuration of the present invention as described above, it is possible to quickly read the temporary defect information while saving the capacity of the temporary defect information area provided in the optical record information storage medium.

Claims (22)

In the recording method, Temporary defect information of a multiple of a predetermined unit size K (N = 0,1,2 ...) in all temporary defect information, and remaining temporary information of the multiple of the predetermined size in the total temporary defect information. And separately recording temporary defect information. The method of claim 1, The size (K × N) information of the temporary defect information as many as the multiple of the predetermined size, the position information where the temporary defect information as the multiple of the predetermined size is recorded, and the position information where the remaining temporary defect information is recorded as the optical information. And recording on a recording medium. The method of claim 1, And the optical recording medium comprises a write once information storage medium. In the recording method, a) continuously recording temporary defect information in the area of at least a part of the optical recording medium among the total temporary defect information by a multiple of a predetermined unit size K (N = 0,1,2 ...); b) accumulating and recording the remaining temporary defect information of the entire temporary defect information, except for the temporary defect information as many as a multiple of the predetermined size, for each operation until the size of the remaining temporary defect information becomes the predetermined size (K); Recording method comprising a. The method of claim 4, wherein c) the size (K × N) information of the temporary defect information by the multiple of the predetermined size, the position information on which the temporary defect information by the multiple of the predetermined size is recorded, and the position information on which the remaining temporary defect information is recorded. And recording on the optical recording medium. The method of claim 4, wherein d) when the size of the remaining temporary defect information to be recorded in the operation is the predetermined size K, the temporary defect information corresponding to the multiple of the predetermined size (K × N) and the remaining temporary defect of the predetermined size K. And recording information continuously in at least a portion of the area of the optical record carrier. The method of claim 6, and e) recording the size (K × N + K) information of the continuously recorded temporary defect information and the positional information on which the continuously recorded temporary defect information is recorded. In the recording apparatus, Temporary defect information of a multiple of a predetermined unit size K (N = 0,1,2 ...) in all temporary defect information, and remaining temporary information of the multiple of the predetermined size in the total temporary defect information. And a control unit which controls to separate and record the temporary defect information. The method of claim 8, The control unit, The size (K × N) information of the temporary defect information as many as the multiple of the predetermined size, the position information where the temporary defect information as the multiple of the predetermined size is recorded, and the position information where the remaining temporary defect information is recorded as the optical information. And further controlling to record on the recording medium. The method of claim 8, And the optical recording medium includes a write once information storage medium. In the recording apparatus, A first control unit for controlling to continuously record temporary defect information of at least a portion of the optical recording medium in multiples (N = 0,1,2 ...) of the predetermined unit size K among all temporary defect information; , The temporary defect information of the entire temporary defect information, except for the temporary defect information as many as a multiple of the predetermined size, is controlled to accumulate and record every operation until the size of the remaining temporary defect information becomes the predetermined size (K). And a control unit. The method of claim 11, The size (K × N) information of the temporary defect information as many as the multiple of the predetermined size, the position information where the temporary defect information as the multiple of the predetermined size is recorded, and the position information where the remaining temporary defect information is recorded as the optical information. And a third controller for controlling to record on the recording medium. The method of claim 11, When the size of the remaining temporary defect information to be recorded in the operation is the predetermined size K, the temporary defect information corresponding to the multiple of the predetermined size (K × N) and the remaining temporary defect information of the predetermined size K are stored. And a fourth controller for controlling to continuously record in at least a portion of the optical record carrier. The method of claim 13, And a fifth control unit which controls to record the size (K × N + K) information of the continuously recorded temporary defect information and the positional information on which the continuously recorded temporary defect information is recorded. An optical record information storage medium, An area in which temporary defect information is recorded, in multiples (N = 0, 1, 2, ...) of a predetermined unit size (K) of all temporary defect information; And storing an area in which the temporary defect information of the entire temporary defect information other than the temporary defect information by the multiple of the predetermined size is recorded separately from the temporary defect information by the multiple of the predetermined size. media. The method of claim 15, The size (K × N) information of the temporary defect information as many as the multiple of the predetermined size, the position information where the temporary defect information as the multiple of the predetermined size is recorded, and the position information where the remaining temporary defect information is recorded And an area. The method of claim 15, And the optical recording medium comprises a write once information storage medium. An optical record information storage medium, An area in which temporary defect information of multiples of predetermined size K (N = 0,1,2 ...) is continuously recorded among all temporary defect information; The temporary defect information of the entire temporary defect information, except for the temporary defect information as many as a multiple of the predetermined size, includes an area accumulated in every operation until the size of the remaining temporary defect information becomes the predetermined size (K). And an optical record information storage medium. The method of claim 18, Size (K × N) information of the temporary defect information as many as the multiple of the predetermined size, position information in which the temporary defect information as the multiple of the predetermined size is recorded, and position information in which the remaining temporary defect information is recorded And an area. The method of claim 18, When the size of the remaining temporary defect information to be recorded in the operation is the predetermined size K, the temporary defect information equal to the multiple of the predetermined unit size (K × N) and the remaining temporary defect information of the predetermined size K And an area in which is recorded successively. The method of claim 20, And an area in which the size (K × N + K) information of the continuously recorded temporary defect information and the position information on which the continuously recorded temporary defect information is recorded are recorded. A computer-readable recording medium having recorded thereon a program for performing the recording method, the recording method comprising: Temporary defect information of a multiple of a predetermined unit size K (N = 0,1,2 ...) in all temporary defect information, and remaining temporary information of the multiple of the predetermined size in the total temporary defect information. Separating and recording the temporary defect information; The size (K × N) information of the temporary defect information as many as the multiple of the predetermined size, the position information where the temporary defect information as the multiple of the predetermined size is recorded, and the position information where the remaining temporary defect information is recorded as the optical information. Recording on a recording medium.