Heh

I rarely backup my Blockbuster rentals these days, but I keep AnyDVD running for another reason.

It also prevents the spyware on commercial CDs from being installed. So for example when Sony released their latest rootkit, I was unaffected. I didn't of course know that until after the furor, but after finding out I decided it was an effective piece of anti-malware software and would remain on my PC for good.