Patent ID: 7296178
Filing Date: 2007-11-13
Classification: G11B,G11C

Abstract:
1. A write-once-type recording medium comprising: a data area to record therein record data; a first control information recording area, which is located on inner circumferential side of said data area, to record therein information for controlling an operation of recording and/or reading in said data area, said control information recording area including a definite defect management area to record therein defect management information of said data area; a second control information recording area, which is located on outer circumferential side of said data area, to record therein information for controlling an operation of recording and/or reading in said data area, said control information recording area including a definite defect management area to record therein defect management information of said data area; a first temporary defect management area, which is located in said first control information recording area, to temporarily record therein the defect management information of said data area; a second temporary defect management area, which is located between said first control information recording area and said data area, to temporarily record therein the defect management information of said data area; a third temporary defect management area, which is located between said second control information recording area and said data area, to temporarily record therein the defect management information of said data area; and a status information recording area in which status information for indicating a recording status of one portion or each of said first to third temporary defect management areas is to be recorded.