| 摘要 |
PROBLEM TO BE SOLVED: To utilize information on individual disks such as OPC parameters stored in a host computer even after the contents of a CD-RW disk have been erased. SOLUTION: In a PMA area of a CD-RW a frame having information on disk identification information in a proper location and frames having information on tracks recorded in a program area are recorded, respectively. When an instruction is given to erase the whole disk, the frame having the identification information is stored at the head of the PMA, and all the frames having the track information of the PMA are erased. When an instruction to erase the last track is given to the PMA concerning the CD-RW where the disk identification information is recorded following the information on the last track, the information on the last track is erased by being overwritten by the disk identification information. The disk information at the original location is erased.
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