I have the DVD too and I think that Pasha and Matemax are both right.

There are elements of the DVD that are quite inspiring.
It is also true that there are parts of the DVD that are not well planned or delivered (I will have to review the DVD again to find the error Pasha saw though).

I bought the DVD on impulse based on my recollections of his French DVD, which I remember (rightly or wrongly) as being outstanding.  This DVD is very different, it isn't as good as I would have liked - but it's still worth looking at I think, I find something quite appealing about ziegler and he has worked quite hard in a number of lines to find some interesting ideas.

A friend of mine purchased this DVD...I watched the first half hour.  Ziegler's delivery is so disorganized it's comical, really.  But that's not what's bothering me about his DVD.

Just as I mentioned in these forums regarding Pedersen's Benko book and a Shirov DVD I viewed, THERE IS NO EXCUSE FOR THE INCLUSION OF OUTRIGHT BLUNDERS.  I don't know about you, but I always have an engine running in the background for analysis and blundercheck.  Can anyone justify these authors not doing the same when they are creating these things?  I mean, c'mon now...Ziegler's DVD is a Chessbase production...they don't have access to a chess engine??   

As you requested, I won't spoil it for you...but somewhere between the 20 minute and 30 minute mark, Ziegler is suggesting what he considers to be a critical move for black...which instantly turns into about a +3 for white!  And to be truthful, I didn't need an engine running to see immediately that a simple transposition of moves K.O.'s the line.

Perhaps I should not judge the entire DVD too harshly because of this one mistake, especially since I haven't watched the rest of it.  But when a critical suggestion is so obviously flawed, and so early on in the DVD, I tend to lose my appetite to explore it any further.

Caveat Emptor.