That's why music CDs are great, I make two copies: one for my car in case the heat destroys it, one for my 2.0 gear since I have a four year old, just in case he wants to play frisbee. No hassles with DRM or any bs, my originals are in a rack where junior can't reach and they only pull duty as my "masters", some of my CDs are rare and out of print, totally irreplaceable.
That's why I skipped the i Tunes of the net, nothing like having your own master to re-copy as you wish.