Here are videos I took using a Sony HX9V, which has been lauded for its HD capability in many professional reviews. It was an outdoor concert. As the light faded into evening, you can see how the small sensor, small aperture lens, and auto-focus struggles (to be fair, I did not have AF tracking on) to provide high definition video. I had to hold the camera over my head, and stabilization could not keep up with my tiring arms. The sound is adequate...not terrible but certainly not great.