We don't usually discuss piracy sources but I will say a couple of things. A game.key, or sometimes disc.key file, should be distributed only with WUD images. If you obtained a WUD image, which would be one or more .wud files, and no disc key was provided, it could be inside the .nfo file that should have also been distributed with the WUD image. Open the .nfo as an image and look for it there.So these sites host content to which no game.key appears to exist? Am I missing something? These sites seem to be pointless!?