I was transferring videos from a memory stick pro duo when I touched the card as it was attached to my card reader. It disconnected from the computer. I reconnected it and was asked if I wanted to recover the files and it worked however the files ended up as .chk files. So I do no know how to recover those files. I would like to know how to recover those files. I also would like to know how to be able to open the MP_ROOT file. This file was damaged during the process of the loss of the files. It no longer looks like the folder it looked like before.