I'll also point out that (so far- I'm only halfway through Disc 1) each segment is reasonably short - in the five to seven minute range. However, Mark does a great job of giving you complete information.

I went with purchasing the discs because (1) The Lords of Bandwidth at work have cut off streaming media, and (2) at home I have a dial-up connection. But even without those restrictions, I probably still would purchase the set.