Demo Recording

From Quake Wiki

To record a demo, type in the Quake console: record mydemo

To stop demo recording, type in the Quake console: stop

To play a demo: playdemo mydemo

If you have a video codec installed like Google's VP 8 and are using FitzQuake Mark V on Windows:

To convert a demo to AVI movie: capturedemo mydemo

Notes: GLQuake could not start recording a demo after the start of a map, but most modified engines like Quakespasm support this (an example of engine that doesn't is DarkPlaces).