Most of the videos would be easily digestable at 1.5X - 3X speed, epecially when just trying to get an overview -- this would be a great value-add, as I could watch many more videos than I have time for now.

Is there a player that will play the WMV's at variable speeds and keep the audio, possibly pitch-shifted down for intelligibility?

It would also be great to have a synchronized timeline w/the video showing contents of slides and of transscribed audio so that one could search, jump ahead, etc.- let's add some value to all this great content!