Actually, it appears to me that it will not be that simple to keep an audio track in sync, since there are a couple of differences with Despecialized 2.0. Remember Harmy had to delete one frame at the reel change near the end of the movie (between Vader falling down and Luke following him to a circle hatch opening) in order to keep Hairy_Hen’s audio in sync. Also, there was an extra frame in the beginning in DE 2.0 that required a +42 ms offset.
This release may fall out of sync by 1 frame here and there but overall it’s unnoticable. The audio track used for this release was the high rez stereo option from Harmy’s Despecialized.
One of my side projects is to find out which version of the OOT is the most complete. I think the US GOUT is missing some frames. I know A New Hope is missing one frame the end of reel 5 - not enough to notice any sync issues. I have not checked TESB or ROTJ yet. Right now I’m working on the 97 SE - trying to create a good master and account for missing frames by using 3 versions of the SE (or 4 in the case of ANH and I’m also doing TMP because I have two sources for that) and comparing them to the GOUT and BR. Then I’m going to compare some of the LD releases (including the 93 De), the US GOUT, the UK GOUT (which I suspect is the most complete version based on a few things I’ve seen so far) the SE, and the BR (probably not the DVD as it is essentially the same). I’ll make a new thread if I ever get around to finishing the comparison. But 1 frame here and there doesn’t affect the perception of syncing. Some of these films have lines that are already more out of sync than that. Yet knowing which version is the most complete to use as a master for syncing would be a nice thing.