| 摘要 |
PROBLEM TO BE SOLVED: To edit the digital data without injuring the right of a copyright holder. SOLUTION: An area where the program A data recorded on a medium a1 are recorded is automatically divided into the areas of A1-A4. The data A1 of the program A reproduced/obtained from the medium a1 are recorded on the medium b2 through a data transfer part 6. A data transfer confirmation part 7 monitors a data transfer operation state and a transfer data amount. Then, after the confirmation part 7 confirms that the all data of the program A1 are recorded on the medium b2, the part 7 controls an erase part b9 to erase the all data of the program A1 from the medium a1. |
