Unfortunately out of the 70+ BMUG disks I have, none of them have MacMovies. I understand this particular source was compromised at some point so much of the collection was not available online.Like Flash and Real Audio and VideoWorks, the player program was free. The movie encoder program was for sale. So the MacMovies on a BMUG disk won't make a movie, but will play back a compressed file.
It sounds like we should be looking for MacMovies application though, rather than the player. Obviously it uses a proprietary format for playback, possibly something similar to GIF animation which doesn't draw anything which gets repeated in the subsequent frames thereby reducing the file size?
Anyway, if you come across your copy simply taking a peak would be lots of fun.
Well it sounds like there is no reason to try to restore your Mac. However, there is no reason to irrevocably hack one in pristine condition. The original 128Ks are museum pieces now. But either way, living within the limits of an unaltered one is more or less the point, but the fact remains there were hard drive storage solutions in 1984 unavailable to us today. In fact I have a perfectly functional serial MacBottom for use with a 128K, but cannot find a copy of the driver software anywhere. But your point about the limited audience for an HD20 flash drive is why some of us have been looking to implement a SCSI solution which already has some groundwork laid (e.g. John Bass MacSCSI) –– two or three people is about right, LOL, me, JDW and possibly one other out of curiosity.I am not in the "pristine original" camp. My Mac got hacked every which way, and I keep it as a memento of exciting times when a community of enthusiasts were pushing Apple's creation to do things Apple never considered. ... I can understand that some people want to retain the original Mac as shipped and unaltered, but those folks are also going to have to live within its limits. While it's technically possible to make a flash drive and attach it to the floppy ports a'la HD20, it's a couple of man-years of full-time work, and the worldwide audience for such an effort is maybe 2 or 3 people.
Taking this one step further, what is even the point of writing a 68000 movie player for a modern video output, when only about 6 people in the world care (luddite among them)? Unlike the Apple II world, there seems to be no interest in continued development for the vintage Mac, which strikes me as odd ... but from my limited exposure to an Apple II in high school in 1983 & 84, I never understood the appeal of it, whereas I have been in love with the Mac since I first laid eyes on it in the Summer of 1985.

