Barozi on 08 December 2015
the console recognizes the 360 disc if it's in the Xbox Store's database and then downloads the game from there, since the games are slightly modified (I remember reading an interview about them having to rewrite the executable files).
While I'm not 100% sure I think there's only one version of each game available to download, no matter what region the 360 discs are locked to. Thus including all the languages that used to be split up. (Except for versions that had to be altered to see a release in Germany, Australia, Japan etc.)
Would be nice if someone could confirm that eventually.
