Roger's woze

VLC itself has a “capture desktop” mode though apparently it doesn’t work with sound.  It feels a tidge slower than (if you’re on Windows) using a directshow input source that captures the desktop.

Here’s a list of the ones I’ve found that are free to download.

http://www.umediaserver.net/umediaserver/download.html uscreencapture, works ok.

http://wiki.medialooks.com/Screen_Capture_DirectShow_Filter seems quickest to me, of the available, though I haven’t looked at them too closely.

http://betterlogic.com/roger/?p=3046 shows the source code for one, though I don’t believe it comes pre-built so you’d have to build your own.

http://www.splitmedialabs.com/vh-video-sdk/vh-screen-capture

So far I like “medialooks” best though haven’t had too much experience using it yet.