I have one of the Data Discmans, no idea what to do with it. It looks like but is incompatible with anything else I have
It really is buried and forgotten technology outside of audio. The premise was awesome, data, music, video could all be on a common disc. The MD even had a foothold on the professional audio market but the data and video seemed to implode.
1980 with some classics, those SL-Technics were big money, all the linier trackers I saw were very cheap and plasticy.
From 1990, I uploaded the entire page, they had some neat products shown including the SAM-1 which looks like a modified loudspeaker, what a good subject for Techmoan! The Toshiba's look promising, anybody know these models?