Jesus, why am I compressing my audio files?

[JWP]

I think I am an idiot!!!! I have been copying CD tracks to a playlist in Media Player in WMA 128 format because I am so stupid as to think that I can get maybe a hundred or so songs on one CDR. I did the math and if each song is three minutes or so, it uses three megs of capacity - right? A 700 meg CDR should then hold around 200+ songs - right?

So what am I missing here? Obviously I am not gettng the big picture. So if the CDR is limited to time (80 minutes) over capacity (700 MB), can someone please tell me what the hell I am compressing my tracks for? Why bother if I am just making "greatest hits" CDs? (I realize that my little MP3 player needs compression, but that is a different case.)

Someone please be so kind to explain. I'm lost here.

[JWP]

OOOPS!!! I now realize that there is a BIG difference between data and audio CDs.