General rate: Positive
This software is awsome, saved my ass. Managed to recover almost 100% of data on a customers broken RAID array.

General rate: Positive
I had a 250-gig external drive that did not seem to be physically damaged but that suddenly had stopped being recognized by any computer as readable. (The Windows XP error message was "disk not formatted"). After much panicking, I downloaded the professional version of Studio-R and it successfully recovered all of my files -- most of which were enormous (3G and above mpgs, isos, and other video files). I downloaded the free demo first, which is limited to restoring files below 64k, and it worked like a charm, so I downloaded the $79 pro version (I wanted to make sure I could restore large NTFS files). Rank beginners might have a hard time learning it because there is no manual to speak of, but intermediate users and above will have no problem. HIGHLY RECOMMENDED!