Re: Convert mp4 to mp3?
Well since you have mp4 files, I take it you have iTunes. In that case, open iTunes up, click on Edit>Preferences>Advanced>Importing> And where it says Import Using: Change that from mp4 to mp3. Then right click the songs you want to convert and select Convert Selection to mp3, after that is done, you will have both mp4 and mp3 forms of the song/s. So just go and delete the mp4 ones if you want. Hope this helped