MiniDisc

MiniDisc is a discontinued CD-like audio disc developed by Sony. It was moderately successful in some countries, though not in the United States. While some pre-recorded MiniDiscs were produced, it was mainly used for home recording.

The recordable format is magneto-optical, while pre-recorded MiniDiscs are just optical.

It uses ATRAC or LPCM audio compression.

Links

 * minidisc.org
 * MiniDisc
 * Techmoan: MiniDisc - An Appreciation (video)