I will try to make it short and simple.

The first method would be  

Roadkil’s Unstoppable Copier

It recovers  files from any damaged disk. The trick is it allows you to from disk files that give corruption errors. The program functions by recover all the parts of the file that are still readable, and ignore the damaged parts. the best part you don’t have install the program and can run it right away.

Download here 

The second methid would be :

CD Recovery Toolbox

IT supports all kind of format  CD, DVD, HD DVD and even bluray. Basically, it recovers data off disks with physical damage (chipping, scratches) or some some sort of incorrect recording. If you watching the movie  , the damaged part will be skipped. Instead of the whole CD cannot be watched  now you watch the good part.

Download here 

[via : online-tech-tips]