| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively shorten a required time for check-in in equipment protecting a copyright of a content such as NetMD equipment. <P>SOLUTION: It is decided whether the NetMD equipment is in a stop state or not (S101), and it is decided whether checked-out music is present on a disk or not when in the stop state (S102). When present on the disk, it is decided whether a track wherein an ID is not computed yet is present or not (S103), and a track ID computing process is performed when the non-computed track is present (S104). During the track ID computing process, presence/absence of generation of a computing interruption factor is decided (S105). When the computing interruption factor is generated, the computing of the track ID is interrupted (S106). It is decided whether the track ID computing process is completed or not (S107), and it is returned to step S101 when completed. The track ID is stored in a track ID buffer, and is read in time of the check-in. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
