Hi Steve- R U interested in video looping with tape or computer-based? Video tape delays had been utilized some years ago by using 2 open reel machines and cross-taping from the record machine to the other. I understand that this was rather avengard or rarely used, since it was so involved. To make an actual tape loop, would be quite impratical, since the splice would have to be flawless so as not to cause a video glitch in the picture. A control track would have to be recorded first, then possibly, the video could just be recorded in an "insert" mode fashion. This method might just work, though it's not been tried, as far as I know. Anyway, wish you all the best with your experiment. Cheers, Bob H.