KR20090061148A - Method and apparatus for managing optical disc - Google Patents

Method and apparatus for managing optical disc Download PDF

Info

Publication number
KR20090061148A
KR20090061148A KR1020070128029A KR20070128029A KR20090061148A KR 20090061148 A KR20090061148 A KR 20090061148A KR 1020070128029 A KR1020070128029 A KR 1020070128029A KR 20070128029 A KR20070128029 A KR 20070128029A KR 20090061148 A KR20090061148 A KR 20090061148A
Authority
KR
South Korea
Prior art keywords
area
recording
data
recorded
information
Prior art date
Application number
KR1020070128029A
Other languages
Korean (ko)
Inventor
김범진
김재환
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020070128029A priority Critical patent/KR20090061148A/en
Publication of KR20090061148A publication Critical patent/KR20090061148A/en

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark
    • G11B19/128—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of track pitch or recording density
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/00736—Auxiliary data, e.g. lead-in, lead-out, Power Calibration Area [PCA], Burst Cutting Area [BCA], control information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
    • G11B7/0079—Zoned data area, e.g. having different data structures or formats for the user data within data layer, Zone Constant Linear Velocity [ZCLV], Zone Constant Angular Velocity [ZCAV], carriers with RAM and ROM areas
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B2020/1264—Formatting, e.g. arrangement of data block or words on the record carriers wherein the formatting concerns a specific kind of data
    • G11B2020/1265—Control data, system data or management information, i.e. data used to access or process user data
    • G11B2020/1285—Status of the record carrier, e.g. space bit maps, flags indicating a formatting status or a write permission
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

A method for managing optical disk and apparatus are provided to reuse the remaining space of light disk in which the document is not finished normally. A method for managing an optical disk comprises: a first step (S301) of recording information to the reserved area for recording data in the management area; a second step of recording the data in the reserved area; and a third step of renewing the information and recording in the management area. The first step further comprises a step of reserving a second area for directly recording the data and a first area for recording the information related to the data recorded in the second area.

Description

Method and apparatus for managing optical disc

The present invention relates to an optical disk management method and apparatus.

Recently, optical discs capable of recording high-definition video data and high-quality audio data, such as write-once DVDs (such as DVD-R or DVD + R) and disc devices capable of recording / reproducing them, have become widespread. It is becoming.

A recordable optical disc device, such as a DVD-Recorder, records all data in a data area of an optical disc, and then records management information related to the recorded data in a management area such as a lead-in area 108 or the like. When an optical disc on which data is recorded is inserted, management information is first read from the management area or the like, and the data recorded in the data area is reproduced based on this.

However, if an unexpected event occurs during recording of data in the data area of the disk, for example, if a power failure occurs, the recording cannot be terminated normally, the management information related to the previously recorded data is not recorded on the disk. The problem arises that you cannot reuse the remaining space.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a method of using the remaining space of an optical disk for which recording is not normally terminated due to a power failure or the like.

SUMMARY OF THE INVENTION The present invention has been created to achieve the above object, and a disk management method according to an embodiment of the present invention includes: a first step of recording information on an area reserved for data recording in a management area of a disk; And a second step of recording data in the reserved area.

The embodiment further includes a third step of updating the information on the area in which data is recorded and recording the information in the management area when data recording is completed.

In the above embodiment, a second area for directly recording data and a first area for recording information related to data recorded in the second area may be reserved, and in the first step, start addresses of the first area and the second area. Is recorded in the management area, and in the third step, an end address of the second area may be recorded in the management area, and in step 3, information indicating the end of the first area and the second area is stored in the management area. Can be recorded.

In the above embodiment, when data recording is completed, dummy data may be recorded in the remaining space of the second area after information related to data recorded in the second area is recorded in the first area.

In the above embodiment, when data is first recorded on the disc, a third area for recording file system information about all data to be recorded on the disc is reserved in front of the first area and the information on the reserved third area. Can be recorded in the management area.

According to another aspect of the present invention, there is provided a disc management method, the method comprising: checking management information on titles recorded on a disc from a disc management area: and whether recording of the disc is normally completed based on the checked management information. Characterized in that it comprises a step of determining whether or not.

In the above embodiment, if the end address of the area in which the last title was recorded is not recorded in the management information for the last title, it is determined that the recording of the last title has not been normally terminated. The information on the information is completed and recorded in the management area.

In the above embodiment, the management information for each title includes information indicating a start address and an end address of a second area in which data of the title is recorded, information indicating whether or not the second area ends, and data recorded in the second area. It may include a start address and / or an end address of a first area in which related information is recorded and information indicating whether the first area is terminated.

In the above embodiment, when it is determined that it has not been normally terminated, the last position of the second area in which the data of the last title is recorded is retrieved, the dummy data is recorded in the first area for the last title, and the last title Information indicating that the first and second areas of the second area and the second area of the second area and the second area may be recorded.

Disc management apparatus according to another embodiment of the present invention, the recording / reproducing unit for recording data on the disc or read data from the disc to reproduce; And a control unit for controlling the recording / reproducing system, wherein the control unit checks management information on the area in which each title recorded on the disc is recorded from the management area of the disc and based on the checked management information. It is characterized by determining whether or not recording of the last title is normally completed.

Disc management apparatus according to another embodiment of the present invention, the recording / reproducing unit for recording data on the disc or read data from the disc to reproduce; And a control unit for controlling the recording / reproducing system, wherein the control unit reserves a second area for recording the data requested to be recorded and a first area for recording information related to data recorded in the second area. Record information about the first area and the second area in a management area of the disc, record data in the second area, and update information about the first area and the second area when data recording is completed; It is characterized by.

In the above embodiments, the disc is a DVD-R, and the management area is a recording management area provided in the inner circumference more than the lead-in area.

Therefore, the remaining space of the disk on which recording is not normally terminated can be used again.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, data recording on an optical disc that can be written once, for example, a DVD-R, will be described. You can finish recording to a disc with a single data write to a disc that can be written to once (DAO: Disc at once), or you can write data multiple times (multi-session). You can leave it open for the next record without finalization. Each data recorded until recording starts and stops on a recordable disc is called a title or session.

Fig. 1 shows the structure of a DVD-R, which is a recordable optical disc on which a plurality of titles are recorded.

When a title is first recorded in the data area of a DVD-R disc, a predetermined size, for example, R-zone # 1 101 of 6,000 sectors is assigned to the head of the data area, and recorded on the disc when the disc ends. File system information regarding the entire title, for example, a UDF (Universal Disc Format) bridge, a VMGI (Video Manager Information), or the like is recorded in the R-zone # 1 101. Even if several titles are recorded on the disc, no data is recorded in the R-zone # 1 101 until the disc is finished.

When the first title is recorded in the data area of the DVD-R disc, the R-zone # of a predetermined size after the allocated R-zone # 1 101, for example, 100 sectors (or a different size for each device manufacturer), is recorded. Data is recorded in R-zone # 3 103, which is allocated 2102 and allocated to the area after the R-zone # 2 102. After all of the data is recorded in the R-zone # 3 103, information about the title data recorded in the R-zone # 3 103, for example, VTSI (Video Title Set Information) is generated to generate the R-zone. The backup is recorded at the end of # 3 (103), and the VTSI is recorded again in the R-zone # 2 (102).

Then, the navigation information associated with the first title recorded, for example, the Start Address (and / or End Address) of R-zone # 2 102 and R-zone # 3 103. ), Information indicating whether the R-zone # 2 102 and the R-zone # 3 103 are terminated, or the like, is provided in the recording management area RMA: Recording Management Area (109).

When a command to close R-zone # 2 102 (Close R-zone # 2) is issued, dummy data is written to the remaining R-zone # 2 102 after the VTSI is recorded and R Information about zone # 2 102 is recorded in the RMA 109. In addition, when a command (Close R-zone # 3) for terminating the R-zone # 3 (103) is issued, unlike the R-zone # 2 (102), the R-zone is not recorded without recording dummy data. Information about # 3 (103) is recorded in the RMA (109).

Similarly, when the second title is recorded, an R-zone # 4 104 of a predetermined size is assigned after the R-zone # 3 103 and an R-zone allocated to a region after the R-zone # 4 104. The data of the second title is recorded in zone # 5 105. The process after all the data has been recorded in R-zone # 5 105 is the same as for the first title.

An apparatus for recording data on a DVD-R disc records, for example, the nth title (Title #n) while recording a title, and thus R-zone # (2n) 106 and R-zone # ( While allocating 2n + 1) 107 to record data in R-zone # (2n + 1) 107, R-zone # (2n) 106 and R-zone # (2n + 1) ( 107) manages the start address in memory, and also stores information (NWA: Next Writable Address) indicating the next recording location in R-zone # (2n) 106 and R-zone # (2n + 1) 107. The NWA for the R-zone # (2n + 1) 107 is continued while recording data of the title (Title #n) in the R-zone # (2n + 1) 107. Update while increasing.

Thereafter, the recording apparatus, when terminating the R-zone # (2n) 106 or the R-zone # (2n + 1) 107, manages the R-zone # (2n) 106 managed in the memory or Write the start address (and / or end address) of R-zone # (2n + 1) 107 to the RMA 109, and also the R-zone # (2n) 106 or R-zone # ( Change the NWA of R-zone # (2n) 106 or R-zone # (2n + 1) 107 to 0 (or start address) to indicate the end of 2n + 1) 107; Write to RMA 109. The address and NWA information are recorded for each R-zone.

Next, the process of recording data on the DVD-R disc will be briefly described.

When a data recording request to the DVD-R disc is input, the recording apparatus performs an OPC operation for calculating the optimal recording power, reserves R-zone # 1 101 to be used for finalization of the disc, and title # 1. After reserved the R-zone # 2 102 to be used for recording information about the (Title # 1) data, the user data of the title # 1 is recorded in the R-zone # 3 (103).

When the data recording of the title # 1 is completed, the apparatus records information about the title # 1 data recorded in the R-zone # 3 (103) in the R-zone # 2 (102), and records the first title recorded with the first title. Related navigation information (start address (and / or end address) of R-zone # 2 102 and R-zone # 3 103), and R-zone # 2 102 and R-zone # 3 103 Information indicating completion or the like) is recorded in the RMA 109.

However, an unexpected event during the recording of user data for Title # 1 (or Title #n) to R-zone # 3 103 (or R-zone # (2n + 1) 107), for example, When a power failure occurs, data recording for Title # 1 is stopped and navigation information related to Title # 1 (or Title #n) is not recorded in the RMA 109.

Therefore, when the recording apparatus recognizes the disc again after recovery from power failure, it becomes impossible to obtain navigation information related to the title from which recording has been stopped from the RMA 109, so that the remaining space of the disc cannot be used again.

That is, when recording data on a DVD-R disc, the recording apparatus first checks the RMA 109 of the disc, and title # 1 (or title #n) is included in the RMA 109 of the disc where recording is interrupted without notice. Navigation information related to) is not recorded. Therefore, the recording apparatus attempts to record the data requested for recording in Title # 1 (or Title #n), and R-zone # 3 103 (or R-zone # (2n) in which data is already recorded. +1) (107)), because data is duplicated and recorded, recording for Title # 1 (or Title #n) fails.

Thus, in the present invention, when recording data on a disc, the recording order is reversed so that the information related to the area in which the data is to be recorded, for example, the start address (and / or R-zone (area reserved for recording corresponding data)). End address) can be recorded first in the management area, and then data can be recorded. That is, management information that is determined when recording is requested, such as the start address (and / or end address) of R-zone # 2 102 (or R-zone # (2n) 106), is first recorded in the management area. After that, the data of Title # 1 (or Title #n) is recorded, and thereafter, management information about the recorded data can be completed and recorded.

In addition, in the present invention, when there is a request for data recording, first, it is checked whether the management information of the disc contains uncompleted management information, and as a result of the verification, no management information is recorded in the management area or all the management information is completed. If the recording is done in a normal state, a normal recording operation is performed. On the other hand, if the verification finds incomplete management information, it searches for the last location where data was recorded (the location where recording was stopped for the last title) from after the address recorded in the management information and manages the last title for which recording failed. After completing the information and recording it in the management area, recording of the requested title is performed.

The present invention can be applied to various types of optical disk devices capable of recording, such as DVD recorders.

2 illustrates a configuration of a disk device to which the present invention is applied. The recordable disk device 200 includes an optical pickup 210 and an optical disk 100 that record or read data on the optical disk 100. Servo unit 220 for driving the optical pickup 210 to read data from or to record data on the optical disk 100, and to receive data from the optical pickup 210 to restore data. Or a signal processing unit 230 for converting data to be recorded or recorded into a signal for recording, a memory 240 for temporarily storing various information and data, and a controller 250 for controlling each component. Can be configured. The optical pickup 210, the servo unit 220, and the signal processor 230 may be integrated and managed as one recording / reproducing system.

3 is a flowchart illustrating an operation of a disk management method according to an exemplary embodiment of the present invention. The operation flow of FIG. 3 will be described with reference to FIG. 2.

If the control unit 250 receives a request to record title # 1, for example, on an optical disc such as a DVD-R (S301), first, the OPC for calculating an optimum recording power in an area located in the inner circumference of the disc. The operation is performed (S302), the R-zone # 1 101, the R-zone # 2 102, and the R-zone # 3 103 are reserved, and the reserved information is recorded in the RMA 109 (S303). ).

At this time, the control unit 250 controls the servo unit 220 and the signal processing unit 230 to move the optical pickup 210 to the RMA 109 provided in the inner circumference more than the lead-in area 108, The start address (and / or end address) of the reserved R-zone # 1 101 and R-zone # 2 102 is recorded in the RMA 109. The starting address of the R-zone # 3 (103) is recorded. It may record in the RMA 109 in advance. In addition, the controller 250 may include a start address (and / or end address) of the R-zone # 2 102 and a start address of the NWA and R-zone # 3 103 of the R-zone # 2 102. And NWA are managed in the memory 240.

Thereafter, the control unit 250 controls the servo unit 220 and the signal processing unit 230 to record the data of the title # 1 in the R-zone # 3 103 (S304). The NWA information corresponding to the current recording position is updated in the memory 240 and managed in real time.

When the recording of the title # 1 data in the R-zone # 3 103 is completed (S305), the control unit 250 provides information about the title # 1 data recorded in the R-zone # 3 103 (VTSI). ) Is generated and recorded at the end of R-zone # 3 (103) (S306), and the VTSI is also recorded in R-zone # 2 (102) (S307). Subsequently, the controller 250 issues a "Close R-zone # 2" and a "Close R-zone # 3" command to transmit dummy data to the remaining R-zone # 2 102 after the VTSI is recorded. Information about the R-zone # 2 102 and R-zone # 3 103, i.e. the reset NWA (information indicating the end of the corresponding R-zone), the end of the R-zone # 3 103 The address (and / or start address) is recorded in the RMA 109 to update the RMA 109 (S308, S309).

4 is a flowchart illustrating an operation of a disk management method according to another embodiment of the present invention. The operation flow of FIG. 4 will be described with reference to FIG. 2.

The control unit 250 may turn on the RMA 109 of the optical disk 100 when the disk apparatus 200 is turned on, when the optical disk 100 is inserted, or when data recording is requested to the optical disk 100. To search for information related to the last title (Title #n), that is, the region (R-zone # (2n) and R-zone # (2n + 1)) in which the data of the last title and information on the data are recorded. Check whether all information (NWA, start address and / or end address) is recorded (S401).

The controller 250 determines that a part of the information related to the last title is missing as a result of the check (S402), and determines that the recording of the last title has not been normally terminated (S403). In RMA 109, only the start address (and / or end address) of R-zone # (2n) is recorded in the information about R-zone # (2n), and the NWA of R-zone # (2n) is recorded. Also, the information about R-zone # (2n + 1) may record the start address of R-zone # (2n), but the NWA and end address of R-zone # (2n + 1) is recorded. It is not.

Accordingly, the controller 250 controls the servo unit 220 to move the optical pickup 210 to the start address of R-zone # (2n + 1) and to perform the RECD operation in the circumferential direction from the moved position. In operation S404, the RECD operation detects whether the data is recorded by detecting a beam reflected from the disk while moving the optical pickup 210 in the circumferential direction. Indicates an action to do.

When the last data recording position is found, the controller 250 moves to the start address of R-zone # (2n) recorded in the information about the last title of the RMA 109 to record dummy data (S405). , 'Close R-zone # (2n)' command to write NWA (Reset value) of R-zone # (2n) to RMA (109) and 'Close R-zone # (2n + 1)' command. The NWA (reset value) of R-zone # (2n + 1) and the end address corresponding to the searched position are recorded in the RMA 109 to update the information on Title #n (S406).

Thereafter, the controller 250 performs a recording or reproducing operation requested by the user (S407).

Therefore, the remaining space of the disk on which recording is not normally terminated can be used again. However, because the file system of the last title is abnormally terminated without being created, the data of the last title cannot be recovered or reproduced.

The above-described preferred embodiments of the present invention are disclosed for purposes of illustration, and those skilled in the art can improve, change, and substitute various other embodiments within the technical spirit and scope of the present invention disclosed in the appended claims below. Or addition may be possible.

1 shows the structure of a DVD-R, which is a recordable optical disc on which a plurality of titles are recorded,

2 shows a configuration of an optical disk device to which the present invention is applied;

3 is a flowchart illustrating an operation of a disk management method according to an embodiment of the present invention;

4 is a flowchart illustrating an operation of a disk management method according to another embodiment of the present invention.

※ Explanation of code for main part of drawing

100: optical disk 100: disk device

210: optical pickup 220: servo unit

230: signal processor 240: memory

250: control unit

Claims (25)

A first step of recording information on an area reserved for data recording in a management area of the disc; And And a second step of recording data in the reserved area. The method of claim 1, And when the data recording is completed, updating the information on the area in which the data is recorded and recording the information in the management area. The method according to claim 1 or 2, And the first step includes reserving a second area to record data directly and a first area to record information related to data recorded in the second area. The method of claim 3, wherein The first address and the start address of the second area are recorded in the management area in the first step, and the end address of the second area is recorded in the management area in the third step. The method of claim 4, wherein And in the third step, information indicating the end of the first area and the second area is recorded in the management area. The method of claim 3, wherein The third step may further include recording dummy data in the remaining space of the second area after recording information related to data recorded in the second area in the first area. . The method of claim 3, wherein In the first step, when data is first recorded on the disc, a third area for recording file system information about all data to be recorded on the disc is reserved before the first area, and the third area is reserved for the reserved third area. And recording information in the management area. The method of claim 1, And the disc is a DVD-R. The method of claim 8, And the management area is a recording management area provided in the inner circumference more than the lead-in area. Checking management information on titles recorded on the disc from the management area of the disc: and And determining whether or not the recording of the disc is normally terminated based on the checked management information. The method of claim 10, And if the end address of the area in which the last title was recorded is not recorded in the management information for the last title, it is determined that the recording of the last title has not been normally terminated. The method according to claim 10 or 11, wherein And if it is determined that it has not been normally terminated, further comprising completing information on the last title and recording it in the management area. The method of claim 12, The management information for each title includes information indicating a start address and an end address of a second area in which data of a corresponding title is recorded, information indicating whether or not the second area ends, and information related to data recorded in the second area. And a start address and / or an end address of a first area and information indicating whether or not the first area is terminated. The method of claim 13, And the recording step further comprises retrieving the last position of the second area in which the data of the last title is recorded. The method of claim 13, And the recording step further comprises recording dummy data in a first area for the last title. The method of claim 13, The recording may include recording the information indicating that the first area and the second area of the last title have ended and address information corresponding to the last position of the second area. Way. A recording / reproducing unit for recording data on the disc or reading and reproducing the data from the disc; And And a control unit for controlling the recording / reproducing system, The control unit checks management information on an area in which each title recorded on the disc is recorded from the management area of the disc, and determines whether or not recording of the last title is normally terminated based on the checked management information. Disk management unit. The method of claim 17, The management information for the area of each title includes information indicating a start address and an end address of a second area in which data of the title is recorded, information indicating whether or not the second area ends, and information related to data recorded in the second area. And a start address and / or an end address of the recorded first area and information indicating whether or not the first area is terminated. The method of claim 18, And if the end address of the second area for the last title is not recorded, the controller determines that recording of the last title has not been normally completed. The method of claim 19, If the controller determines that the recording of the last title has not been normally completed, the controller searches for the last position of the second area in which the data of the last title is recorded, and stores the address information corresponding to the retrieved last position and the last title. And information indicating that the first region and the second region are terminated in the management information of the region of the last title. A recording / reproducing unit for recording data on the disc or reading and reproducing the data from the disc; And And a control unit for controlling the recording / reproducing system, The control unit reserves a second area for recording the data requested to be recorded and a first area for recording information related to data recorded in the second area, and stores information on the first area and the second area on the disk. Recording in a management area, writing data in the second area, and updating information on the first area and the second area when data recording is completed. The method of claim 21, The control unit records the start addresses of the first area and the second area in the management area before recording data, and records the end address of the second area in the management area after the data recording is completed. Disk management apparatus, characterized in that. The method of claim 22, And the control unit records information indicating the end of the first area and the second area in the management area after the data recording is completed. The method of claim 21, And the controller records the dummy data in the remaining space of the second area after recording the information related to the data recorded in the second area after the data recording is completed in the first area. The method of claim 21, The controller, when recording data for the first time on the disc, reserves a third area to record file system information about all data to be recorded on the disc before the first area and provides information on the reserved third area. And record the data in the management area.
KR1020070128029A 2007-12-11 2007-12-11 Method and apparatus for managing optical disc KR20090061148A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020070128029A KR20090061148A (en) 2007-12-11 2007-12-11 Method and apparatus for managing optical disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020070128029A KR20090061148A (en) 2007-12-11 2007-12-11 Method and apparatus for managing optical disc

Publications (1)

Publication Number Publication Date
KR20090061148A true KR20090061148A (en) 2009-06-16

Family

ID=40990679

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070128029A KR20090061148A (en) 2007-12-11 2007-12-11 Method and apparatus for managing optical disc

Country Status (1)

Country Link
KR (1) KR20090061148A (en)

Similar Documents

Publication Publication Date Title
KR100891107B1 (en) Method and apparatus for managing defect on disc
JP2007109394A (en) Method and device for managing defective area of optical recording medium
KR101024921B1 (en) Method for managing defective area on write-once optical recording medium, and optical recording medium using the same
JP4768573B2 (en) Information recording medium, recording / reproducing apparatus, and recording / reproducing method capable of effectively performing recording prevention function
US7983123B2 (en) Methods of defect management and reproduction, program and recording medium, and apparatuses for information recording and information reproduction
US20050122870A1 (en) Information recording medium, recording and/or reproducing method, and recording and/or reproducing apparatus
JP4713140B2 (en) Digital data recording method, recording apparatus and reproducing apparatus
JPH10106170A (en) Optical disk information recording system
JP4189425B2 (en) Recording device
KR20090061148A (en) Method and apparatus for managing optical disc
US7522489B2 (en) Initialization method, reproduction method, computer-executable program product, computer-readable recording medium, data structure, information recording apparatuses, and information reproducing apparatus
JP2005327405A (en) Recording method, information recording device, information reproducing device, program, and recording medium
JP4270163B2 (en) Recording / reproducing method and disk recording / reproducing apparatus
JP4102743B2 (en) Information recording / reproducing apparatus, information recording / reproducing method, and program
JP4757771B2 (en) Data structure, information recording / reproducing apparatus, management method, and write-once information storage medium for write-once information storage medium
CN1707671B (en) Recording/reproducing apparatus
JP4476967B2 (en) Information recording / reproducing apparatus and control method of information recording / reproducing apparatus
KR100701385B1 (en) Method for managing defect in optical disc device and optical disc thereof
KR100283245B1 (en) A method for generating defect area manager data on a recording medium and a method of accessing a recording / playback point using the same
KR20090057209A (en) Recording device, recording method, and computer program
JP2010514086A (en) Reliable video recording on optical discs
KR20060069441A (en) Device and method for recording data blocks
KR20050090289A (en) Data writing control method for recording optical disc
US20100020650A1 (en) Recording apparatus
KR20060076403A (en) Method for managing navigation information in optical disc device

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application