Dr Barker, first THANK YOU for sharing these. I do have one suggestion though: these videos would be far more listenable with better audio quality. There are several products on the market that are cheap and provide a self-contained wireless lav you can wear during a lecture. Something like the Zoom F2, Tascam DR-10L or a similar product would help make your lectures so much more accessible. Alternatively you could try doing some quick post processing on the recordings before uploading, I just tried with adobe podcast voice enhance and it helped a lot, but I'm not sure what the best practices are for that approach.
