I had a play with this today; http://www.piriform.com/recuva
Tried it out on a digital camera card and it found a load of deleted pictures without fuss. 🙂 always handy if you accidentally delete your work and its FREE
Recuva – Undelete, Unerase, File and Disk Recovery – Free Download
Piriform – Authors of the hugely popular software CCleaner, Defraggler, Recuva and Speccy.