Jeremy,
Treasured, along with the RepairKit they send once the files are evaluated are pretty much miracle workers when all of the above has failed on P2 cards (or any type of disk, I believe.) Their customer service is very attentive and have done everything to help me along with this process, as you have here.
I highly recommend this program to anyone who has files they think are lost forever. If they can be retrieved, Treasured will find the way. It was very inexpensive compared to having to shoot it all over again!
Thank you so much!
Sincerely,
Sandy