I use
Freecorder, it works well for recording streams like WV, but I don't really like using it because it installs loads of crap unless you're very careful. It also slows down your browser. I disable it unless I actually need to use it. But it does do a better job that anything else I've found, which is why I put up with it.
If you do install it makes sure to 'Decline' everything it offers you in the setup.