Quake3World

OK, I've fogotton how to do this.
Capturing frames to a folder. I want to get a decent quality video (not limited by fraps etc). I seem to remember some way to save frames as individual .tga files and then composite in primere etc.

cl_avidemo x

Where x is the FPS you want to record at. You'll need lots of free HD space for this to work.

http://www.own-age.com/forum/thread.aspx?id=36181

This will also point you to some other tutorials on the same site.

that's been a great help