Right, gotcha! Well the international versions will be even more different because there would have to be redone foley work for all of the on set sound that wasn't captured, along with the dubs, then they would all be remixed. I really doubt that Burtt surpervised those mixes - I say that because Darth Vader's voice effect in the French dub is really cheap sounding. Almost like the actor is talking through a tube.

In any case, the German people might know best, but I think they are more influenced by the mono mix than the stereo mix in terms of effects and dialogue.