http://video.google.com/videoplay?docid=2960294055376109117

Definitely techy but does shed light, no pun, on areas such as CCD v CMOS filters sensitivity and noise. It's one of a series:

http://www.dicklyon.com/phototech/

The lecture on Image forensics is fantastic on detecting "forgeries" or what you did in photoshop.

Not specifically MFDB but I thought more likely to be appreciated by posters here.