I "heard" that if you use at bit torrent client such as "Utorrent" & a torrent site ( i swear i "heard" these were the good ones )
http://isohunt.com/
http://www.youtorrent.com/
you can ummm uhh illegally download all the music you want, as a matter of fact a "friend" of mine has about 200 gigs of ill gotten booty thanks to these sites. if you do use torrents just check when the window opens b4 you down load the files that they are .mp3 & not flac or ogg or .wav
if you get a program called "freerip" you can quickly & easily change cds to mp3, if you have any other ?'s pm me 'n i will consult with my "friend"