There is an interesting hard drive data recovery technique that you might never have heard about, it involves freezing the damaged drive to get the data off it. It doesn't sound like it should work, but several people claim it does.
This is one of those tricks that you use out of a shear act of desperation, when nothing else has worked. I plan to use this if I ever need to help someone recover data from a failed hard drive, and all other methods of data recovery have been exhausted.
I have to admit I have not tested it or am I recommending that you use it. If you want so more useful information about this technique make sure to read the comments on the following web page, there is a lot of good feedback there.
As I said earlier, you should only use this trick when nothing else works and you're desperate to recover the data from the drive. Also, as I have said in the past in other posts, use this information at your own risk.