| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To apply prevention against circulation of storage media, such as DVDs of pirate edition in which contents were copied illegally, to reproduction of a next generation DVD in a good affinity fashion. <P>SOLUTION: The content reproducing apparatus comprises an SKF (segment key file) selector 101 for selecting one segment key file out of a plurality of segment key files recorded on a DVD media when the content of a sequence key is reproduced, a video data selector 105 for selecting each content corresponding to a series of segment numbers of each key entry registered at the selected segment key file, a video data decoder 106 for decoding each selected video data using each segment key corresponding to the series of the segment numbers, respectively, and a decoder 107 for reproducing each decoded video data. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
