DVD with Hardware read error

I'm using DVD Decrypter to ripp a movie called Unbreakable onto my computer, but I keep getting a certain hardware read error or two. It retries 30 times and gives up with an error message. Now, I using a disk doctor on this thing twice and there are still some slight little scratches, but nothing major. I don't understand.. is this some kind of copy protection? There's one suspicious scratch I can't seem to remove with buff cloth. What are some methods to remove a scratch on a dvd? I have already tried mixing baking soda with toothpaste and buffed it out onto the scratch, but it only helped remove it some. I still get the error. Either than constantly adding and buffing this toothy-soda paste I made, what else could I try? I'm pretty sure it's a scratch problem.

never mind, I used the toothpaste and baking soda method once more and the dvd copied flawlessly. Not a single error.
Even though the scratch was still there, this little paste fixed it somehow.
Buff it in at least twice if you have dvd scratches. Good luck!

It has to be Crest Tartar Toothpaste ! Jk I went googling for fun found this.



http://www.supyo.com/home/projects/s..._scratches.htm