when i download mp3 tracks from cd to my itunes and then try to sync my ipod, unless the cd is in which i originally downloaded the mp3 files, the itunes cannot find the files and even when the cd is in, it sometimes cannot find most of the mp3 files. It's seems even though the mp3 files are appearing in the itunes library the itunes has not actaully downloaded them onto the hard disk so cannot find them! I've tryed various things but nothing works and it's frustrating me. When i download normal cd tracks from original cd's i never have any problem, only have a problem when downloading mp3 files from cd's. can anyone help?