Seems to be one of the streaming capture apps not included among the reviews here.

http://help.nuclear-coffee.com/VideoGet/

I've only tried it once -- just now -- but it succeeded in grabbing a clip that Tubedigger and Jaksta 5 had whiffed on. I think it did a direct d/l, not a screen record. Saved as MP4, PQ could be 1:1, but I'm not certain. The clip was supposed to be 720p, and that's what VLC reports upon playback. I would not jump to any conclusions without a much larger sample size, but for a first go, this looked promising. I'd just like to see every viable app that is out there get evaluated on VH.