Corrupted External HDD

This is external hard drive I connect to AVerMedia capture card. And the suspect is unknown. My guess is that it died when I was copying some photos off the PS3. So due to this unfortunate event, all the videos I have recorded to this point are gone until they are recovered. I actually have completed everyone (minus one) im@s request and had a few other video projects going on, but all this might  need to be redone. Afuu…