Write-once-type recording medium.

摘要

A temporary defect management area (14) is placed between a control information recording area (12) and a data area (11). Before a recording medium (10) is finalized, defect management information is temporarily recorded into the temporary defect management area (14). Upon finalizing, the defect management information is recorded into a definite defect management area (13) placed in the control information recording area (12).