I just wanted to mention that Fritz and I presented a workshop on accessible, web-based, captioned video at the 2007 Accessing Higher Ground conference in Boulder, Colorado. You can find the PowerPoints, handouts, and CD files via the following address:

http://disability.law.uiowa.edu/lhpdc/publications/kleinpubs.html

The Flash code hasn't been changed, but the handouts and activities have been improved. So if you're interested in learning how to caption web-based video, you might give it a try.

Dave