It was actually a much bigger issue in the past. You pretty much cannot get the theatrical release of the star wars episode 4. I think the best we have are the laser disc rips. To me, that's a a bigger "memory hole", happening way before big tech.
There is the "Silver screen edition" of Star Wars (first of the first, even before it got the "Episode IV"), but it only happened due to enormous efforts of fans who got an original print that should have been destroyed, digitized it with a homebrew machine, and painstakingly restored it frame by frame. That's a really fascinating story.