> encoder is roughly 4 times slower than DivX 4.0 ( but I think that it's > faster than OpenDivX ), > and decoder is somewhat slower ( also compared to DivX 4.0 w/max > postprocessing ). It can > become a really good codec if open-source community spends enough time on > its optimization. Its fairly optimised anyway so it may well be generically slower. The big advantage it has over mp3 audio + mpeg4 subset video is in the patent minefield dept