I really don't get where some of the other reviews for this video/ DVD are coming from, saying that it's a good 'sleeping aid' or things of this nature.  A big part of what makes the "Aja" album such a landmark is the way it put to use such spellbinding musicianship from a long list of different players, and the sophisticated elegance and beauty of the songs themselves--this really IS fascinating stuff, even though many fans unfortunately don't seem to give a damn, and if that's the case, I don't know why they are bothering with this DVD in the first place.  Another reviewer commented that you've got to really LOVE Steely Dan to really enjoy this DVD--well you know what, people do love Steely Dan and for good reason--if you come to this DVD expecting mindless entertainment to watch while you throw back a few beers, you're out of your mind.  This DVD gives you a thrilling peek into the making of the album, demonstrating some of the musical techniques that were used--the way the bass was doubled on guitar on "Josie", and the layering of Michael McDonald's background vocals on "Peg" to point out a couple examples.  McDonald gives a highly intriguing, if ever-so-slightly derogatory discussion of his performance on "Peg", and you also get great interview/ performance segments from Chuck Rainey, Rick Marotta, Dean Parks, Denny Dias, and Bernard Purdie, as well as great segments from guitarist/ arranger Larry Carlton, producer Gary Katz, master engineer Roger Nichols, and of course, Donald Fagen and Walter Becker themselves.  Also, the appearance of the late Ian Dury is a shock (he died right around the time this DVD was released), although not an unpleasant one--it's quite strange since he wasn't at all involved in the making of the album, nor is he even someone you associate in the slightest with the West Coast pop-rock scene of the 1970s.  The interviews with Fagen and Becker and seeing them dissecting the tracks... GREAT stuff--priceless, really.  Fagen & Becker for once go easy on their supreme sarcasm and are shown in great spirit, great humor, and are even movingly reflective at times--wonderfully intimate stuff from a true genius team.  All that said, any TRUE Dan fan will indeed appreciate this DVD and LOVE having it in their collection.  On the other side of the coin, there are some drawbacks to the DVD for sure.  For one thing, it's rather scattershot--Becker mentions early in the DVD how the only other original Steely Dan member still working with them by the time of "Aja" was guitarist Denny Dias, and then, over halfway through the DVD, they get back on the topic of Dias, discussing how they hooked up with him which ultimately lead to the beginning of Steely Dan.  They do basically move from one song to the next, but the sequencing could have been a lot better.  However, this would have been a virtually ignorable issue had this DVD been more thorough.  Quite frankly, this DVD left me hungry for more--it's painfully far off from being fully comprehensive.  As other reviewers have already stated, the fact that drummer Steve Gadd's name isn't even mentioned in the DVD is a damn shame indeed, and that's just for starters.  I wish there was even more interview stuff with McDonald, Nichols, Dias, etc...  So, in the end, the DVD does leave me a little unsatisfied, but I'm still thrilled with the great stuff that it does offer, and I think any serious Steely Dan fan ought to feel the same.