Thanks, the info is muchly appreciate!
It looks like the editing to make that particular movie line up with another audio track would be very subtle. It’s not a different framerate or officially different cut of the movie, it just may be that the more recent blu-ray release for whatever reason used a print where say a couple seconds are added overall via just a few less than a second differences adding up, maybe in scene transitions etc.
That’s just hypothesizing though. My hats are off to people who add audio tracks like all the one available in the Star Wars releases on here, I can only imagine the work that goes into making sure they’re all properly synced up.