On Video

This seems to have worked, with limitations. You may have to fiddle with the controls, and it seems to want to download the whole thing before playing it (which it calls "buffering") but it plays well and clearly when it decides to go. I'll have to do this more often in the future.

Incidentally, I downloaded this from You Tube using a bit of software called "Videobox" by TastyApps (TastyApps.com) which makes downloading videos very easy.