You missed CDXL out of your history lesson :-)
Between IFF ANIM and MPEG-1 there was a need to play video files (ie. animation with sound) on hardware that was not fast enough to decode MPEG. CDXL was first, I think, devised for the CDTV and it plays pretty well on low-end hardware. It never really caught on, not even in the Amiga market. A MPEG->CDXL convertor would possibly be quite useful for low-end Amiga owners.
Chris
