Right, the disk doctor is the one I was referring to in my first reply in this thread.

Question: Does anyone know if the disc doctor works well on DVDs? Or if there is a similar product for DVDs?

I often rent DVDs at the video store, and sometimes I get a scratched one. It's a real annoyance to have the movie start breaking up in the last half hour of its playback. My DVD player doesn't tolerate scratches well, and the movie will begin breaking up, then the player will completely freeze and lock-up, requiring a power off/on cycle.

I have been able to get refunds for my rental in these cases, but that doesn't change the fact that I was never able to finish watching the movie.

I'm wondering if there is a polishing system that I could use on rented DVDs that leaves them in good enough condition so that the rental store doesn't even know I repaired their disc for them. If it leaves visible scuff marks, then I can't use it for this purpose.