I wouldn't worry about it for that purpose. If some of the bits become unreadable on an audio CD--hell, if many of the bits become unreadable--you probably won't be able to hear the difference, and if you're burning from MP3 files, there probably won't even be a difference, unless you are using a wastefully high bitrate (or VBR).
Contrast this with a data CD: flip one bit in an executable program, and it very likely becomes unusable. Flip one bit in a bank of data, and right answers become wrong. (Ask RadioAstronomer how important that can be.)
I've just started burning audio CDs myself. I'm a longtime subscriber to Emusic.com (which I recommend to every true music lover), and have assembled a (figuratively) massive library of MP3 albums. Now I can tote my treasures with me anywhere; that's the real value of it. If storage space is your main issue, you might want to reconsider: 32 MP3 (VBR) albums take up about 2 gigabytes of space on my system. Disk storage costs about a dollar per gigabyte these days. The cheapest storage case I've found for 32 CDs costs about $10, not counting the media.