Patent ID: 7710841

Claim:
An apparatus for recording and/or reproducing data with respect to a write-once recording medium, the apparatus comprising: a recording/reading unit which records data on or reads data from the write-once recording medium; and a control unit which controls the recording/reading unit to record temporary defect list data for defect management which comprises location information of defective data and replacement data corresponding to the defective data, in at least one cluster of a temporary disc management area of the write-once recording medium, verifies whether a defect is detected in the at least one cluster, when the defect is detected in the at least one cluster in which the temporary defect list data is recorded, controls the recording/reading unit to record data for replacing the temporary defect list data recorded in the at least one cluster in a replacement cluster of the temporary disc management area, and controls the recording/reading unit to record pointer information indicating a location of the replacement cluster in a temporary disc definition structure (TDDS), wherein the pointer information includes location information of the replacement cluster instead of the at least one cluster in which the temporary defect list data is recorded, and the temporary defect list data and the temporary disc definition structure and recorded in a disc management area provided on the write-one recording medium during finalization of the write-once recording medium.