The first post now has a good selection of videos to watch.
The video file sizes are up to 10 times smaller than the originals that they were encoded from. The motion is smoother with fewer visible artifacts than I expected. Only the "Living FPV 2" video has had spatiotemporal smoothing applied as recommented in the "Geek tech" notes inside the spoiler, and yet the others are also quite comfortably viewable.
Even on a DX and DXG they are nice (although a little like watching a "comic book").