CD-I

Also Known by its full name "Compact Disc Interactive", CD-I was a short-lived video disc format introduced by Philips in 1993 that was designed to be played in CD-I players equipped with an optional Digital Video Cartridge. This expansion unit contained a 32 bit RISC processor and 1 MB of RAM to provide MPEG-1 decoding. It was the first digital video format on the consumer market. It is best known for the infamous Hotel Mario game, or the Legend of Zelda games. These were the only Nintendo games that were ever licensed under any other company (Philips). It's lesser known use was for films. Only 20 or so movies made it onto CD-I.