What app or client it playing it? When I just open the webpage they link it's a Real Player imbed, but it seems to be trying to play a Quicktime file and I get a message that a Real Player update to handle the media is not available. The direct link seems to be:
http://quick21nj.audiovideoweb.com/nj21quick1503/events/2006/2006_10_17_Shut_Up_and_Sing/ShutUpandSingPanel.mp4
For me, it opens in Quicktime. I don't use the bloatware/adware/spyware Real Player.