Is this on the laserdiscs?
The thx tapes are stereo, not sure if they are the theatrical just thx certified.
Raiders and Doom were released in pan and scan CAV full feature format on laserdisc, last crusade was clv. Not sure if the clv releases of raiders and doom are time compressed. The ones i own are the clv letterbox releases.
From what i have heard the dvd 5.1 is derived from the 70mm mixes of the trilogy, the 35mm were not used on the dvd.
Some of the foreign dvd releases have those countries own 2.0 from what i remember but none of them have the english 2.0.
But Lucas botched dvd versions of graffiti and thx were also missing their monaural mix. pretty bad for thx considering it was the brilliant sound design of walter murch.
Because of Lucas i will never be able to retire my Laserdisc player. The idiocy of these not being on dvd in their real original versions is just simply astounding, as to the original star wars being non anamorphic and crap quality. The original THX also exists as a non anamorphic video master on laserdisc, did not even get the bastardized treatment of a gout.