Method and apparatus for managing defects in recording media, and a defect managed recording medium obtained using the same method

摘要

A method, apparatus and computer readable medium for managing recording medium defects and a defect managed recording medium. The recording medium includes a spare area in which a replacement area, which is a substitute for a defective area of the recording medium, is formed, and a temporary defect management area in which temporary management information that specifies the defective area and the corresponding replacement area is recorded. The method includes determining whether defect management of the recording medium has been previously successfully completed; scanning a portion of the recording medium purportedly containing no recorded data, as identified in a spare bit map (SBM), and verifying whether the portion contains no recorded data; and updating the SBM to reflect a recording state of the recording medium based on the verification of the portion of the recording medium. In this way, a write operation and restoration of data can be performed.