I thought I was making backups fine. They all boot up and play. BUT I went to use my backup to put the game back on the hd and it got to about 80% and quit. So I tried another backup. It did the same thing. I am thinking it has to do with the iso format I am going to so some testing with different apps and see what happens.. But you might want to check your backups and see if you can transfer 100% of the data.