Fang Zei
I don’t see why they should be able to hold all three! Most Bluray titles have 6 or 7 different language tracks.
Return of the Jedi (THX laserdisc and THX DVD) had some of the original dialogue panning re-mixed centred. It’s where the Princess meets the Ewok.
Left front pan -“Well looks like I’m stuck here? Trouble is I don’t know were here is?”
Also the opening where an imperial officer says
Left front pan -“Inform the commander that Lord Vader’s shuttle as arrived”
Centre front -“Sir”
Laserdisc edition (1478-85)
You really need matching fronts LCR for this to perform flawlessly, and trained ear as some pans are hard and others are half pans placed between or mixed onto (left and centre or centre and right). The discrete mix will be different ball game in DolbyTrue six-track.
Also in Star Wars A New Hope
-“here they come” when the door opens up without hissing sound because its been lifted its not under own power, because Luke shot the controls!
In the laserdisc and special and DVD there’s a (hissing) sound.