| 摘要 |
Reproduction time of an optical disc, including produced time or remaining time, is determined and displayed by detecting the time codes in the system or control data of the DVD. Reproduced signals are processed, time codes from the reproduced signal data are detected, and the reproduction time is computed based on the time codes and displayed. Performed time and/or remaining time may be produced by detecting the title time codes, the cell time codes and the time codes in VOBU information, and thereafter by decoding the time codes into sub-reproduction-time followed by an operation of summing and/or subtracting. The reproduction time of the DVD may be determined, even though the length of the sector in the DVD is not fixed as the length of the sector in the CD. Therefore, the user is able to acquire the performed time and/or the remaining time of the present title.
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