byzanz man page
byzanz — small screencast creator
Byzanz is a small and efficient screencast creator. It records your desktop session or parts of it to an animated GIF, OGG Theora or Flash.
Byzanz is implemented as a GNOME applet and can thus be used directly from any panel which supports GNOME applets.
Furthermore it consists of two different tools, byzanz-record, which allows you to make recordings from the command line and byzanz-playback, which makes it possible to convert debug recordings into other supported formats.