I want to convert some music i got but its in atrac3 plus format what converter can i use to convert them to mp3 or any other format?
Atrac3 is a proprietary Sony audio format. Nothing will conver the files unless its made or licensed by sony. Where did you get the files (purchase or download)?
I did some googling and came across this site: http://www.infoanarchy.org/wiki/index.php/ATRAC3 It lists a few apps that can encode and convert them, but for the one that converts atrac3 to mp3, it says DRM restrictions still apply, and you need the Sony SonicStage software, so you're probably still S.O.L., but it might be worth checking out.