| 摘要 |
User convenience of data whose duplication is restricted and data created by utilizing the data is improved. An information recording device (10) is capable of recoding information onto an RE layer (22) of an optical disk (1), and includes a recording and replay control section (54) for recording, onto the RE layer (32), duplication-restricted information utilization information (32) created by utilizing duplication-restricted information (31) whose duplication onto a different optical disk is restricted. |
