I think the problem is that you're essentially trying to merge 3 different categories that comprise teaching DVDs:
1. The artists interpretation of the creative process at hand
2. The viewers anticipated level of knowledge in design theory by the artist
3. The viewers anticipated level of knowledge of the software used by the artist
Each category could take volumes to anticipate. No one has that much time to spend on selling a DVD that will sell for $69. Additionally, in my case, some artists can only work at a certain speed that coincides with the needs of their own developed processes. If I can't do it quickly without much interuption, I trail off, click close, don't save. Hmmm, then again that's why people like me don't succeed, but I sure seem to think I know what I'm talking about sometimes.
don't listen to this guy