http://www.cyclopsds.com/cgi-bin/cyclods/engine.pl
i posted the website for those of you who don't know what the hell i'm talking about. i bought it for $70 like a week ago for my son but he only uses the r4ds card. you will need a passkey card to use this card. any questions feel free to PM me
edit: for anyone who doesn't know what this is, it allows you to play MP3's, movies and teh r0mz(romz for nes, gameboy advance, and sega master system) on your nintendo ds