I’d suggest Any Video Converter. A pretty great program for the PC, and while I haven’t tried the Mac version I can’t imagine it would be any worse. Edit: Free version, by the way. I don’t think there’s any reason to get pro. Edit: ... Not sure why i thought that was video files. Give me a sec, I’m sure I know a converter somewhere for audio. Last Edit, Really: Okay, I would suggest Audacity, which is a good audio editing program in it’s own right, but you can open a WMA and then save as an .mp3, you just have to make sure to grab the LAME encoder and go through the LAME FAQ for audacity to set up the mp3 codec. Sorry about that mistake. Good luck!