data recovery.
Let us know how it works out.
VAPCMD
PS...Suggest establishing a second and perhaps third versions of that data you can't afford (or don't want) to lose.
So, as I'm finding out, I made the mistake of purchasing Samsung's HM640JJ 2.5" laptop drive. Some of you may be familiar with the many complaints about bad sectors, etc.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic