Reminds me of the video disc: basically a record with analog video on it. It had a much higher data density than ordinary records. Couldn't be played on an ordinary turntable though.

https://en.wikipedia.org/wiki/Capacitance_Electronic_Disc

Looks interesting but such a blaring spelling mistake in the tag line is pretty poor

No thanks. I'll take my digital audio, free of pops, hisses, and crackles.

> HD Vinyl can reproduce frequencies up to 100kHz

Pointless

Anything released?