I backed up 2 Xbox 1 games and am trying to get them to work on my 360. They are GTA San andreas and Scarface. I used a single layer dvd. Am I supposed to use DL discs for Xbox 1 backups to work on 360? The error messages I got were something like "Xbox game unable to play on disc" followed by "X:couple numbers.0 B:couple numbers.0" anybody know what the x b number error is suppose to mean? help please!