| 摘要 |
An information recording medium and a reproducing device therefor which can realize varied reproduction from data recorded with plural channels and improve the operability. TOC information is recorded at a start point of a disk, and in succession thereto plural kinds of information are recorded on a plurality tracks. Video data, audio data and superimpose data each having plural channels are time-division multiplexed and recorded on each track. A default value relating to a synthesis method for the plural channels is recorded as one of the TOC information or at a header portion of each block of the video data, the audio data and the superimpose data. In another aspect, data in each of plural channels recorded in the disk is supplied through decoders to a synthesizers. A default corresponding to a predetermined channel is stored in a nonvolatile memory, and the default channel is automatically selected by the synthesizer.
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