WRITE-ONCE OPTICAL DISC, AND METHOD AND APPARATUS FOR RECORDING/REPRODUCING MANAGEMENT INFORMATION ON/FROM OPTICAL DISC

• US 20100020655A1
• Filed: 07/20/2009
• Published: 01/28/2010
• Est. Priority Date: 08/05/2003
• Status: Active Grant

• Current Assignee: Yong Cheol Park
• Original Assignee: Yong Cheol Park
• Inventors: PARK, Yong Cheol
• Granted Patent: US 7,898,918 B2
• Time in Patent Office: Days
• US Class Current: 369/47.150
• CPC Class Codes: G11B 20/1217 on discs
• CPC Class Codes: G11B 20/1883 Methods for assignment of alternate areas for defective areas
• CPC Class Codes: G11B 2020/1873 Temporary defect structures for write-once discs, e.g. TDDS, TDMA or TDFL
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers

Abstract

A write-once optical disc and a method and apparatus for recording management information on the optical disc are provided. The optical disc includes at least one recording layer and a plurality of temporary defect management areas (TDMAs) on the at least one recording layer. At least one of the TDMAs includes an indicator indicating which one of the TDMAs has an in-use status.

Claims

1. An apparatus for recording management information on a recording medium including at least one temporary management area, the at least one temporary management area being used in a designated order, the apparatus comprising:

a record/playback unit configured to

record temporary management information in the at least one temporary management area before the recording medium is finalized, and

sequentially create an access indicator corresponding to the at least one temporary management area in a direction of descending address in one of the at least one temporary management area, the created access indicator indicating which temporary management area is currently in use.

2. The apparatus of claim 1, wherein the one of the at least one temporary management area includes a first temporary management area located in a lead-in area of the recording medium and a second temporary management area located in a data area of the recording medium.

3. The apparatus of claim 2, wherein the access indicator is created in an access indicator area located in a front portion of the first temporary management area.

4. The apparatus of claim 3, wherein a first access indicator created in the access indicator area is located in a cluster of the access indicator area having a highest address number.

5. The apparatus of claim 3, wherein a recording direction of the first temporary management area is different from a recording direction of the access indicator area.

6. An apparatus for reproducing management information from a recording medium including at least one temporary management area, the apparatus comprising:

a control unit configured to;

identify a temporary management area which is currently in use based on an access indicator, the access indicator corresponding to the at least one temporary management area and created sequentially in a direction of descending address,

control temporary management information to be read from the at least one temporary management area, and

control data to be reproduced from the recording medium based on the read temporary management information.

7. The apparatus of claim 6,

wherein the one temporary management area includes a first temporary management area located in a lead-in area of the recording medium and a second temporary management area located in a data area of the recording medium, and

wherein the access indicator is located in an access indicator area located in a front portion of the first temporary management area.

8. The apparatus of claim 7, wherein a first access indicator is located in a cluster of the access indicator area having a highest address number.

9. The apparatus of claim 7, wherein a recording direction of the first temporary management area is different from a recording direction of the access indicator area.

10. The apparatus of claim 7, wherein the temporary management area identified currently in use corresponds to an access indicator lastly created in the access indicator area.