I'm sure you can google for IsoBuster and see for yourself.
There are other programs that can try to copy a damaged disc, just google, you might get succes with one.
Also you can try with ImgBurn if you want by slowing down the read speed and activate "Ignore read errors" in Tools > Settings > Read.
Remember there is no guarantee that you can recover it entirely but you can try to save what's possible.
Another possible solution would be to import the video into a authoring program that supports import from media and reauthor it. I recall Ulead Movie Factory 8 could do that.