It's video. You need it to be close to full screen to have any chance of seeing the detailed operations with vertices, lines, surfaces, etc.
Sorry, but that means BIG files.
But, i'm flexible...and all ears. If you have a way to cut down the file size...and still make them
viewable let me in on it, and perhaps I can work it into my production method.
Also, I've been known to cut a couple of CDs for a fella who asks nicely, and save him the horror of hours-long downloads...