Well, here ya go.
This is the very first section of the DVD.
The length of each section varies, the shortest ones are a minute and a half each, many are about 7 minutes, and a few are 15.
I think the longer ones I would break into two or three parts.
In general, more short videos TEND to be better on YouTube. Everyone has short attention spans. I also know that on my laptop, YouTube doesn't run very well (Vimeo works fine, go figure!) Shorter videos are a little easier for downloading in general.