like the topic says, I was wondering because some of my music it'll play and some it won't so I am thinking this is because some are wma format, could someone please help?

Don't think so...........not properly anyway, I loaded some CD's converted via Windows Media Player to WMA's, the only ones I could get to work with any success were 96kb files, the titles were displayed but the Artists were listed as unknown and they had alot of static distortion when played the first time for some reason, but when played a second time no problem.................. anybodies guess as to why, Window's Propriortory stuff I suppose!!! I deleted these and loaded mp3's only, no problems then. Artists and Titles loaded and no distortion..........................YMMV

Some codecs are supported (mainly music) but not the "speech" codecs, though both will have the same extension.

If you use mplayer under ubuntu and it uses a windows dll, then it is a proprietary format. DLLs exist for ARM, but the WINE infrastructure mplayer and others use doesn't.

mplayer does wma. I use it to convert to WAV, then lame to convert to mp3. I've no idea why i don't just use mplayer to play wma files. This is all on my linux desktop... i haven't tried it on my N800.

mplayer does wma. But it won't play DRM-protected stuff. Some media players based on mplayer (e.g. MediaBox) can handle wma as well.

Mplayer on X86 linux may be using windows codecs via a WINE DLL loader.

WMA is a catchall for anything made on a windows machine. Underneath, it might be a standard codec, or a windows-only codec.

Watching in the console normally indicates what it is doing. And various internet radio audio streams that work on my Ubuntu setup (with symlinks to my XP partition) don't work on the n810.