I'm trying to burn a CD-R with AACs (or MP4s) using I Tunes. I have about 45 songs in a playlist, amounting to less than 650 megs. Yet when I try to burn, I keep getting a message saying there are too many songs, and they won't fit on just one CD. Is there something about the AAC compression used...so that 45 songs at 650megs actually requires more storage space than 650 megs? Or am I doing something else wrong? Many THANKS in advance!