Disk control apparatus and disk apparatus using the same

摘要

In a disk control apparatus according to the present invention, after overwriting processing or block erasure processing is performed, index information on the fragmented recorded area is newly generated for managing the recording area, and recording start and end information is written to the video and audio data recorded on a disk apparatus, and edit processing can be easily performed by the disk control apparatus even after video and audio data recorded on the disk apparatus is overwritten with externally input video and audio data and after a part of the video and audio data is erased. <IMAGE>