Took me a bit of Googling in Japanese but here it is:
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https://selltec.co.jp/yomoyama/2667.htmlQuote:
The last commercial disc karaoke
From around the end of the Showa era to the Heisei era, karaoke was at its peak, and karaoke boxes were popping up like bamboo shoots after the rain.
At first, there were CD autochangers without pictures, then video CD autochangers for a short period of time, and then laser karaoke became all the rage. Large-capacity LD autochangers sold like hotcakes, and karaoke businesses prospered greatly.
Around 1994, when the first type of online karaoke began to become popular, Pioneer B-Max Entertainment Co., Ltd. released the MPEG1 format 12cm commercial-use "Alpha Vision Karaoke", but it was too late and it did not become widespread. It disappeared without the general public knowing about it.
They show up as CD-sized MPEG1 discs indeed, but are NOT compatible with VideoCD.
Pictured here is a Pioneer MAP-V3A:
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Julien
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