| 摘要 |
PROBLEM TO BE SOLVED: To make difficult the decoding and the disk copy of the data recorded on a disk like recording medium. SOLUTION: A data recording/reproducing device 10 is provided with a data processing means having at least an encode part 19 coding the data to be recorded on the disk like recording medium 30 and decoding the data to be reproduced recorded on the disk like recording medium 30. The encode part 19 records a disk ID peculiar to the disk like recording medium 30 during a frame synchronizing signal in the control area of the disk like recording medium 30 when the disk like recording medium 30 is initialized, and encodes the user data with the disk ID when the user data are recorded on the disk like recording medium 30. |
