re you talking about this LD release that had a Dolby Digital audio track?If it really was remastered from the 70mm audio, it's quite possible that the surround (rear) channel is mono - this was the configuration for 70mm 6-track sound around that time (left, centre, right, surround, LFE left, LFE right).
Dolby Digital tracks can only have one LFE channel, so the audio would be actually be 4.1 (or maybe 5.1 with "dual mono" surrounds).
Anyway, I don't have the laserdisc, nor the facility to capture Dolby Digital streams off LD. But this sounds like an interesting bit of history to explore.
I've just PM'ed the gentleman who sent the original PM about which LD release he was talking about, waiting for reply.
I am on for designing the cover if you want.
Thta would be great! Only problem is i still haven't found a title for Alien yet, Deleetd Magic, Building an Empire and Returning to Jedi were great titles...can't can't think of one thats good for this :(
***UPDATE***
Just going through the Quadrilogy special features for outtake, alternate shots etc...most behind the scenes footage i've collected. Just saved all nessasary story boards and Ridley grams. Still skint from xmas so waiting on getting an original copy of the 2 disc complete soundtrack for the inside booklet, plus i want this CD anyways (only have this one on MP3). Should be getting started soon.