Try this: connect the drive to your computer, download and install Recuva (http://www.piriform.com/).
When you first start it, it will ask you to go through a wizard, click Cancel, bringing you to Advanced view. Got to the Options button, and select "Deep Scan", "Scan for deeply overwritten files" and one more that I can't remember, there's also a fourth tick box if you want to select that. And make sure you have the corrupted drive selected instead of C: ( or whatever letter it is, it might vary. And once it's done, you can recover the files to a different location. Oh, and there's also a tab where you can specify if you want it to scan for say, Document files. Choose whatever you like.
EDIT: the parentheses are not part of the URL, I just did that to make it more clear.