Ron,
The main problem I see with the DVD is that it appears your editor left out the first chapter where you actually describe the system. Basically, it begins with your introduction then skips directly to you shooting shots saying this is a 90/90, this is a 90/center, etc. shot after shot never having explained the system at all. Cleary's five minute YouTube video did a better job of explaining 90/90 than your $75 dollar DVD.
DVD number two has some good information on it, but people bought the DVD in order to learn 90/90 and you fail to teach it. You simply demonstrate it. DVD number one actually comes across more as your attempt to prove to naysayers that the system works than it does as a sincere effort to teach the system.
If there is a chapter missing in which you taught the system you should find a way to release it to those who purchased the DVD.
As it stands, I'm sorry to say, the DVD is largely a disappointment.