Patent ID: 8064305

Claim:
A method of managing disc defects in a disc, the disc comprising a data area, and a temporary defect management area in a lead-in area and/or a lead-out area, the method comprising: recording Nth temporary defect information in the temporary defect management area, the Nth temporary defect information comprising N−1th temporary defect information, and defect information regarding data recorded in the data area after the N−1th temporary defect information was recorded; recording temporary defect management information corresponding to the Nth temporary defect information in the temporary defect management area, the temporary defect management information corresponding to the Nth temporary defect information comprising management information for managing the Nth temporary defect information; detecting whether there is a defect in the recorded Nth temporary defect information; if a defect is detected in the recorded Nth temporary defect information, recording, in the temporary defect management area, data corresponding to a part of the recorded Nth temporary defect information in which the defect is detected; recording N+1th temporary defect information in the temporary defect management area, the N+1th temporary defect information comprising the Nth temporary defect information, and defect information regarding data recorded in the data area after the Nth temporary defect information was recorded; recording temporary defect management information corresponding to the N+1th temporary defect information in the temporary defect management area, the temporary defect management information corresponding to the N+1th temporary defect information comprising management information for managing the N+1th temporary defect information; and recording a last recorded temporary defect management information and a last temporary defect information in a defect management area provided in the lead-in area and/or the lead-out area.