No difference, just uncompressed.
Another thought for Black Hole extras. Archive.org has nearly the complete run of Starlog magazine, and they did several articles devoted to the film at the time.
https://archive.org/details/starlogmagazineThat is cool for sure and right up there with what we do, but I have no idea what issues and probably to expensive to get and then to try and scan.
I’ve got this covered - it’s all included in the extras package I put together. The details are in the PM I sent you.