Write-once recording medium, a recording apparatus and a recording method for the write-once-type recording medium

It is no partial spare area 12A of the spare area 12 is divided into 12D, the defect list 15 to partially defect list 15A is divided into 15D, to no partial spare area 12A to no 12D and partial defect area 15A in matching 15D. When the defect is detected, the write-once only thereby updated part defect list in the defect management area 13 of the recording medium 10.