| 摘要 |
PURPOSE:To make it possible to select optionally a picture which is a background visual (BGV) by providing an optical disk and two optical pickup that can reproduce music signals and video signals separately. CONSTITUTION:Music signals 17 constituted of digital signals are recorded in the inner peripheral part of an optical disk 8. In this case, music signals have musics with plural pauses. Video signals 18 constituted of analog signals or digital signals are recorded in the outer peripheral part of the disk. In this case too, video signals have plural still pictures or moving pictures. For instance, in the case shown by the picture, music signals are constituted of three musics, and combination of musics becomes 9 kinds in total, and it is possible to see optional picture while listening to optional music, and accordingly, amusing factor is made larger.
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