There were with me also not often the point where I thought ok I know already or that interests me maybe not at all - but the great thing is that you do not have to go through from AZ DVD but can look at the chapter separately or it no Problem is from X to A to jump M.
Personally thick manuals are always a nightmare, just when it comes to Photoshop. Telephone books are not mind. So a video training is a great thing, especially if it is established that great. And when I look at my edited images to me before and after the training, I realize - the money was worth it.