I've been in a fight w/ Apple and Peachpit over this 'new' version of DVDSP4.
I'm an Apple cert. instructor for this and other ProApps. When I started reading the new book I found the same mistakes from version 3 had been copied over to version 4.
Granted, the new compressor app is great but nowhere does it explain the new features of DVDSP4 like support for external video, VTS editing and the whole HD support. I was told by Apple and Peachpit that this version of the book was intended to be an 'revision' of the old book; however, the general advertising of this book says 'Fully Update' instead of 'Fully Revised'... a bit misleading to the people who thought this version would help instruct students on how to best use the new features. We'll have to wait.