Patent ID: 8259544
Filing Date: 2012-09-04
Classification: G11B

Abstract:
1. A drive apparatus for performing a pseudo-overwrite recording for a write-once recording medium, wherein the write-once recording medium includes a data zone including a spare area and a user data area, an inner periphery control information area located at a more inner side than the data zone and an outer periphery control information area located at a more outer side than the data zone, the drive apparatus comprising: a recording/reproduction section for performing a recording operation or a reproduction operation for the write-once recording medium; and a drive control section for controlling the recording/reproduction section, wherein the drive control section performs a process including: generating pseudo-overwrite replacement management information and defect replacement management information including an original location and a replacement location, and a flag indicating whether the replacement location is in the spare area or the user data area; and controlling the recording/reproduction section to record the replacement management information in at least one of either the inner periphery control information area or the outer periphery control information area in the write-once recording medium, and wherein: when the replacement for the purpose of the pseudo-overwrite recording occurs, which is when a request for recording to an area where the area has already been recorded within the user data area, occurs, the drive control section sets a first range of value to the replacement location of the replacement management information; and when the replacement for the purpose of recording due to defect occurs, which is when a request for recording to an area which is defective occurs, the drive control section sets a second range of value to the replacement location of the replacement management information; the first range being a range indicating an area except for the area where an area has already been recorded within the user data area, and the second range being a range indicating an area of the spare area.