Looks like a ligther version of Daido Juku
http://www.youtube.com/watch?v=hJLXEcoW__Q&eurl=http://formosaneijia.com/2008/08 /27/world-games-ju-jitsu-guys/
This is interesting, it's a demonstration of JJ techniques, scored for competition:
http://www.youtube.com/watch?v=Ef0VIl1hwmk&feature=related