you have to have the original game to run a backup .. and only if you hotswap it ..
if the original .xex is loaded and Mediaflag check is correct (and signature) = OK, so run the game. The only thing we can say is that (probably) all the other files of the game don't have the mediaflag set, which is still useless, because you need an signed .xex on a original dvdr disc.
useless video .. next question!
