I've got a short update on my progress. I've finish ripping the audio and I've checked and verified that this is definitely not the 1993 mix. However, other than the tractor beam line I couldn't determine if there were any other differences between the 1977 and 1985 mixes, so I don't really know where else to check to verify this.

One place that doesn't seem to fit is the 20th Century Fox fanfare. The 1985 mix has the re recorded version while the 1130-84 version is the original 50's recording. This disc has the newer version, instead of the one that should be on the 1977 mix.

Any thoughts?