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. Upon finalizing, the defect management information...http://www.google.de/patents/US20050265212?utm_source=gb-gplus-sharePatent US20050265212 - Write once recording medium, recording device and recording method for write one recording medium, and reproduction device and reproduction method for write once recording medium