On a write-once-type recording medium 10, there are provided: a definite defect management area 13 to definitely record therein defect management information; and a plurality of temporary defect management areas 14A, 14B, and 14C to temporarily record therein the defect management information. If the...http://www.google.de/patents/US7602681?utm_source=gb-gplus-sharePatent US7602681 - Write-once-type recording medium, recording appartus and method for write-once-type recording medium, and reproducing apparatus and method for write-once-type recording medium
