msycamore said:

Thanks for posting this! Well, it's a quite clear audible edit at that point. Hmm, this is weird, is there a possibility that you have repaired this segment at some stage and forgotten about it? It doesn't sound like it, maybe that print was damaged at that point?

The reason behind my thoughts is that the wampa cave sequence as seen in the 35mm release must be what Williams wrote the music for, an earlier cut of the scene doesn't make any sense to me unless they decided to cut that close-up of Luke at the last minute.

I was thinking the same thing - the 5-second jump may be because of a splice in that specific print. Also, the missing 5 seconds does not exactly correspond to that shot.

The following screenshots are from the Japanese Special Collection laserdisc, since it has the '85 track. If I the 70mm/'85 synched-up version in sync with this video, the 70mm audio cuts out in the middle of this shot:

...and resumes about here:

Michael Matessino did not mention a missing shot in the Wampa cave, and he supposedly saw the film 70 times in its original release. My guess is that the print had some damage there and the projectionist spliced it out...