Tom,
I don't have the DVD, I have his book. It's great for practice and exercises to get ya faster/more proficient with technique.
I whole heartedly suggest this though (although know you said DVD not book);
http://www.amazon.co.uk/s/ref=sr_nr_n_5/202-3954758-3958232?ie=UTF8&rh=n%3A1025612%2Cp%5F27%3ARichard%20Daniels%2Cn%3A73&page=1I have the Heavy Guitar Bible and Art of Playing.... (although both boxed and in transit right now :( ).
I think of this guy abit like Tim. He spent a HUGE amount of time thinking about these books and an approach to help/make ppl. understand (not some 'spoof' new learning idea though). He writes in 'laymans terms' and explains WHY, which due to my 'need to know' not just copy/learn and my engineering background is GREAT for me.
He explains WHY and also goes into pickup design, amp design etc., enough for a good grounding. Heck he even explains why strings vibrating as they do produce the sound they do. This is kind of a 'complete' book, not for newbies or pros. more a 'Bible' as it says that can be referenced again and again and is a great source of understanding/knowledge.Now, everyone is different so enjoys/assimulates information differently. So they may not be for you (btw, you can see reviews and 'look inside the books' on the amazon.com USA site) but for me, these are THE best books I have found thus far.
Nick