Mavimao said:

Well the mix is different from the original 77 mix because:

1) There is the inclusion of CPO's tractor beam line

2) Hairy_hen has said in Harmy's thread that "the '77 version has the channels panned inwards by a fair amount (presumably this was to reduce crosstalk in the surround, since upmixing processors were less advanced in those days), while the '85 has the full stereo width"

So in my mind, the 85 is a tweaked and modified 77 stereo mix. So yes, in effect a new one.

Well of course it's a different mix than the optical 35mm Dolby Stereo, my point was; do we actually have more information on this "1985 home video mix" other than that old quote from David C. Fein?

The film was released in may '77 with;

35mm two-track (four channel) Dolby Stereo

70mm six-track Dolby Stereo

and later in June in 35mm Academy Mono.

The fact that a fourth format was made available for international release; 35mm four-track magnetic Stereo, (probably made available because Dolby was still fairly new back then) begs the question, what was the content like on those prints? That Burtt would've made a new mix for home video in '85 isn't hard to believe, that's what everyone says happened, it's just that it would be nice with more actual info on this rather than just that old quote.