Transferring photos from power 2 go?

ARTHUR

I backed up my computer photo folder on a DVD disk using "Cyberlink Power2go" software which was pre-installed on my computer, I accidentally deleted one of the photos on my computer, so I tried to re-install it from my backed up copy, when I managed to copy the photo back onto my computer it was saved in the power 2 go format, and could only be viewed on the power 2 go viewer - I want to get rid of the power 2 go software, and get something else, but how do I change the pictures format so I can view it in the "Windows Picture and Fax Viewer" as this is what I use to view all my other photos on ?,I have already tried to convert it back into jpeg format using a few different format converting programs that I got free from the computer active website but when I tried to convert the photo they all stated that those file types were not supported,can anyone out there help.