If you have firefox, you can add modules, such as:
"download flash & video"
http://addons.mozilla.org/fr/firefo...ash-and-video/
and
Ant video downloader
http://addons.mozilla.org/fr/firefo...loader-player/
I use both, sometimes one work sometimes when it doesn't the other one works.
Those plugins let you capture every video/audio stream coming at your computer.