The DVD is just about impossible to get in the UK, so far as I could tell, so I got mine from cdjapan (
http://www.cdjapan.co.jp/detailview.html?KEY=RZCM-45758), for about $45. There seem to be more stockists selling it in the US (SquidCo, EarRational, Fusetronsound), but they're no cheaper than cdjapan.
For a fairly meh review, see
japantimes.co.jp. The one at Downtown Music gallery is slightly more useful:
www.downtownmusicgallery.com
Basically you have live footage of Boredoms doing the drum trio thing, the picture is sometimes a bit poor, but it's still bloody fantastic.