| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a user interface having high degree of freedom and rich expressive power for a high capacity recorded medium. <P>SOLUTION: A flag that indicates whether a play item has a multi-angle structure which can be reproduced with a plurality of angles is provided. Also, a flag that indicates whether a decode unit is an angle switchable point is provided at a beginning of the decode unit. In a seamless multi-angle structure, the angle can be switched, without increasing interleave units. In a non-seamless multi-angle structure, switching of the angle is set disabled by using the flag, in a predetermined region on a rear end side of each angle, thereby discontinuity in reproduction can be prevented when the play item exits from multi-angle reproduction. In addition, a flag that indicates whether a sub play item can be reproduced asynchronously with a main path is provided, thereby the sub play item of only audio can be used as a BGM. <P>COPYRIGHT: (C)2013,JPO&INPIT |
