So yeah - I recently realised that I have a good 300 or so tracks in my music that are 'ATRAC3plus' format (mistake by me) which is annoying as they won't play on winamp.

Is there any way of straight up converting them to mp3, or will I have to delete them all and rip them again as mp3?
they should play on winamp.... >.> just letting you know, if im not mistaken, im pretty sure it is a lossless format, which converting to mp3 is ok, but if its a lossy format, converting to mp3 which is also a lossy format, is a bad thing, your compressing a already compressed file so you will get really bad sound quality.