Patent ID: 7630283
Filing Date: 2009-12-08
Classification: G11B

Abstract:
1. A method for managing a write-once optical recording medium having at least one defective area in a user data area, wherein the optical recording medium comprises one or more temporary defect management areas and a final defect management area, and said method comprises: (a) recording data of the at least one defective area existing in the user data area into a spare area of the optical recording medium as replacement data and providing a first temporary defect list having a defect entry for the at least one defective area; (b) recording, in one of the one or more temporary defect management areas, a cumulative temporary defect list for an additional defective area in the user data area, wherein the cumulative temporary defect list includes the first temporary defect list previously recorded and at least one additional defect entry for any additional defective area, each defect entry including position information of a corresponding defective area and position information of replacement data to replace data of the corresponding defective area; (c) recording, in the same temporary defect management area on which the cumulative temporary defect list is recorded, access information for accessing the cumulative temporary defect list; and (d) recording a latest cumulative temporary defect list recorded in the one temporary defect management area in the final defect management area when the optical recording medium is to be finalized, wherein after finalizing the optical recording medium no additional recording is made to the optical recording medium, wherein the one or more temporary defect management areas are separately positioned from the final defect management area.