Sorry, no mp3 players =[[ It only supports SD cards for the music in this game, which doesn't work for me, since all of my music on this computer is in 'Windows Media Player' format, and I don't know how to change it. I tried a .wav to .mp3 converter, which didn't work, so... yeah.
Can't wait until Resident Evil: Umbrella Chronicles comes out!
Easy way to convert wav to mp3 files is to download iTunes, and import all your WMV music, and iTunes will ask if you want to convert the files to the mp3 format.
I might do that, but I don't like to download more stuff... Oh well, as long as I get to actually listen to good music while racing. Hopefully future games will use USB instead of SD. I only have one 512 MB SD Card, and it has other stuff on it, too. Hopefully for Christmas I'll get a 4 GB SD ^_^