If you already have the cd's you own then there's no need to convert to MP3 as you can just rip the cd straight to MP3 using the best free ripper called Exact Audio Copy. CLick here to download = http://www.afterdawn.com/guides/archive/mydeneaclame.cfm But if you don't have the orignal cd and the music files you want to convert are in another format then just download dbpoweramp which is a converter. Just google the name.