The MorphOS version of Mplayer has some trouble on the Efika with a low res h264/ac3 .mp4 video, might be nonstandard with a dolby digital track in there, can be played back though with the -nosound flag.
The second clip is Hitler hates Prometheus 480p h264/aac in a .flv container and MPlayer won't play it whatever I do.
Regular xvids and mp3s play fine, iTunes AAC music does not. Does this mean that some (even low end) media configurations will only work on G4s?
EDIT: Fab replied too quickly

[ Edited by NicePics13 18.06.2012 - 00:30 ]