I am roughly the same age as the musicians in this group. MII is THE DP lineup as far as I am concerned. And Machine Head is their defining album. I REALLY wanted to like this DVD.
I had so thoroughly enjoyed the Pink Floyd DSOTM doc, that I went after others in the Classic Album series. But this one matches neither the insight nor the technical "under the covers" nuggets found in the Floyd's.
There were good moments. The Smoke on the Water story, although pretty well known by now, is entertaining and informative nonetheless...and the Highway Star "how do you write a song" clip was cute. But no real Blackmore contribution other than the SOTW riff (did you see Gilmour's stuff on DSOTM??) and Paice, who was one of the era's best drummers, was a wallflower.
Entertaining if you like DP MII as much as I do, but far inferior to others in this series, to be perfectly honest.