Most chatroulette like web-sites use RTMP flash video streams. Such streaming videos can be captured with
Jaksta. Just go to the RTMP settings and change from downloading to recording.
And you can always use
screen video capture software like
Replay Video Capture or freeware
CamStudio to record live web camera chats with audio and text chat.
Try to use these programs and let us know if they don't work with RudeRoulette.com