This a fantastic collection. The tests and unfinished work - hugely illuminating of McLaren's techniques. Yet it is not complete, 'Around and Around' (1951) is a strange omission. Must have had a falling out with the BFI(?) The DVD themselves however, are awkward to navigate. Unless you view via the 'themes' provided, you won't know what you are watching, (and indeed will miss the test films etc) yet if you watch by the themes you can only view one film at a time, which is cumbersome at best. The same could be said about the information in booklet and each DVD case. You have to look at both to get all information (DVD case carries durations but no dates while booklet vice versa). So, the design team should pull their socks up!
Still - gets a four for amazing breadth of content.