Patent ID: 7428670

Claim:
A disc for use with a recording and/or reproducing apparatus, the disc comprising: a user data area in which user data is recorded; a spare area other than the user data area and which comprises a substitute area for a defective area existing in the user data area; and a temporary defect management area which comprises temporary defect information and temporary defect management information recorded for a recording operation for use by the recording and/or reproducing apparatus to perform disc defect management, the temporary defect information comprising information on a position of the defective area and information on a position of the substitute area, the temporary defect management information comprising a pointer to a recording position of the temporary defect information, wherein the temporary defect management information is used by the recording and/or reproducing apparatus to manage the temporary defect information and includes an address area which comprises an address of last data that is last recorded in the user data area and which is accessed by the recording and/or reproducing apparatus.