I agree with recording lectures - this converts lecturing from something that is rather less effective to a nifty way of creating multimedia that can be reviewed again and again. I am not in favour of forcing people to record lectures - forcing people never works. And as someone who does lecture from time to time - it is not stupid - as someone said of me recently, "You think by speaking" - and it's quite true. For me, lecturing is a way of thinking. Listeners are the accidental beneficiaries.