Multiple regular-video formats. Simple and works.
2007-04-28 - While it works if compiled (slowly) from source, and can sync audio properly now that I've tried it again.. it can't capture a reasonable-sized screen. It doesn't even get the aspect ratio right.
xvidcap (gvidcap) - says it can record audio, and it can, but it doesn't do it right. I have to research this problem.