Scott Simmons just wrote about this on the Studio Daily blog, but this could be a great service and I wanted to let you know about it.
It’s called Movie Repair. Scott writes:
It looks to operate like this: if you have a movie file that seems to be corrupted and can’t be opened, you download a piece of software called Treasured which can diagnose the file in question. That software helps to file a Repair Request. You are then sent a Repair Kit that will try and repair the file. If you are happy with what you see you then pay for the repair to get the full file.
You can read the full posting here.