WMA? why would you want to use a wholly inferior format? It works with all the major formats, it's just WMA isn't one of them: the far majority of internet music is on mp3, AAC, AIFF or WAV. I've never encountered any problems with it myself. I find it a handy way to play and organise my 10,000 odd songs As with anything technical though, it's all about personal preference, if you don't like how it works, use something else.