Sega Dreamcast

The Sega Dreamcast is a home video game console developed by Sega and released in 1999 (September 9, 1999, or 9/9/99 as a marketing gimmick). The system uses a custom optical format called GD-ROM in which a disc could hold about a gigabyte of data.

FMV on the system was pretty well standardized as MPEG-type files with MPEG-1 video as well as a custom ADPCM codec called CRI ADX ADPCM. Some Dreamcast games were known to use 4xm multimedia for their FMV.