An argument for being able to copy DVDs/CDs/whatever, bypassing copyright protection is to backup stuff on the discs.

But do you actually back up that stuff?
I've got some music CDs ripped on my HDD for convenience purposes (don't care about a backup), but I don't have any backups of legit software discs or DVDs that I have (not that I ever really use them or watch them).

Do you backup your legit discs?