Hi Anders, Also, I would recommend the Advene (Annotate Digital Video and Exchange on the Net) open groupware system. I am currently working together with the team developing the system as I am analyzing hours and hours of video-recordings of actors and avatars while interacting in advanced virtual worlds. Visit Olivier Aubert's and the Advene project's homepage: http://liris.cnrs.fr/advene/screenshots.html And also, see my research project's 'Actors and Avatars Communicating in Virtual Worlds', especially so the 'Videoanalysis' link. Regards, Sisse -- Sisse Siggaard Jensen, Associate Professor, Dept. of Communication, Business, and Information Technologies. Research Group: Knowledge Production and Communication. Research Project: Actors and Avatars Communicating in Virtual Worlds http://www.ruc.dk/komm/forskning/actors_and_avatars/ Roskilde University, P.O.Box 260, DK-4000 Roskilde, Denmark +45 4674 3771, sisse@ruc.dk http://www.ruc.dk/komm/Ansatte/vip/Sisse/