| 摘要 |
In an optical disk apparatus according to an exemplary embodiment of the invention, a management information retaining unit retains an information group which should regularly be recorded as disk management information. The disk management information is obtained from a disk loaded in the optical disk apparatus, and the obtained disk management information and the information group retained by the management information retaining unit are compared with each other to detect an error in the disk management information obtained from the disk. The detected error of the disk management information is corrected into regular information, and recording and reproducing operations are performed to the disk based on the corrected disk management information.
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