Hello, under Windows I have the excellent GOM which is just a better VLC. But under Linux, which program is capable of all those video and audio formats?
VLC works perfectly well on Linux. But, I've also found that MPlayer works just as well.
Either one can require some tweaks if you're going to play some really high-bitrate h.264 files. But otherwise, they play everything I throw at them. Both are modable as far as skins, too, if that's a concern.
Guys just as a heads up, be careful with VLC. It's got multi-platform security leaks if you use subtitles at all I've dealt with 2 Linux and 1 windows installation this month because of it. You can read more specifics here