Rip the CD to FLAC when it first comes in my possession, then I take the CD and put it in a binder. I really don't use them after that--they're a backup should I ever lose my computer music library (not likely) or ever have to prove I own the music (not likely either). I think the last time I had a Wiliams CD playing was probably in my previous car with a CD player before mp3 players became commonplace.