Patent ID: 7859960

Claim:
A method for recording data on an information recording medium comprising a data area including a user data area to store user data and a spare area to store a replacement block that replaces a defective block occurring in the user data area, and a defect management area to store a defect list in which a defect entry is recorded, the defect entry comprising location information regarding the replacement block and first status information of the replacement block, the first status information comprising a first value indicating that the replacement block is unusable, the method comprising: recording a new defect entry with second status information into which the defect entry with the first status information is converted during re-initialization, if the replacement block is located in the user data area after a range of the spare area is changed by re-initialization, wherein the second status information comprises a second value indicating that the replacement block corresponding to the new defect entry is a possible defective block.