I've been using Applian Media Catcher http://www.applian.com/replay-media-catcher/ http://www.applian.com/replay-media-catcher/ to capture videos for teachers a

I've been using Applian Media Catcher http://www.applian.com/replay-media-catcher/ http://www.applian.com/replay-media-catcher/ to capture videos for teachers at my school for a while now. It's not free, but it works with a lot of sites besides YouTube.