Panasonic 3-Camera Live Event/TV P2 Studio 300 HD AG HPX371E CA300G BS300E EC4G
It’s 23″ long, 10″ wide, and 10″ tall (stripped down, the body alone is 14″ long, 5.5″ wide, and 10″ tall). Loop recording requires two P2 cards (of course), and it requires one minute or more free space on each of the cards.