motion uses a video4linux device for detecting movement. It makes snapshots of the movement which can be converted to MPEG movies in realtime (or later for low CPU usage), making it usable as an observation or security system. It can take actions like sending out email and SMS messages when detecting motion.
dvgrab receives audio and video data from a digital camcorder via an IEEE 1394 (widely known as FireWire) link and stores them into an AVI file. It features autosplit of long video sequences into several files, and supports saving the data as raw frames, AVI type 1, AVI type 2, and image files.