There’s nothing particularly new in this article, by Mark Smithers, but it’s worth a read. The underlying notion is that live lectures (i.e. dull, didactic yacks, delivered by a uninspiring presenters) are not suited to video. And he’s right, but they are also not suited to learning in general, which I think is the core problem.
Based on past experience and conversations with numerous students, I think the upside significantly outweighs the downside. I think some lecturers could make a considered case for not recording or at least delaying the release of recordings But usually the decision not to record, when you strip it right down to the pedagogical bones, is an ego issue.
http://www.masmithers.com/2011/03/11/is-lecture-capture-the-worst-educational-technology/
The best stuff is in the comments.
I found this via Stephen Downes