Perhaps someone could run a poll in a thread to get a guesstimate of what people think of video/audio testimonials on a website and whether they would watch/listen to them. My gut feeling is that the vast majority would say they would not watch and/or listen to a testimonial on a website whose main purpose is not to get people to watch videos in general.

If the testimonial was on something like youtube, then that might be different because people go to youtube type sites to actually watch videos.

Personally, I see testimonials (written, video, audio) that can't be verified by a visitor as parasites on a web page