| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a recording medium and recording/reproducing apparatus as well as contents distribution system, which allow interchangeability between a plurality of management systems for managing data constituting contents, and also protect a copyright of each content. <P>SOLUTION: The data encrypted by an FAT management filesystem, when read out from a magneto-optical disk 1, are changed into plaintext at an encryption processing part 17, and also are converted into data based on a start-and-end address management filesystem. The data based on the start-and-end address management filesystem are recorded in the magneto-optical disk, and each management table is changed depending on it. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
