Nice to hear from you.
The DVD is from the Globe Theatre, Tokyo in 1997. Berkoff plays Coriolanus and Linda Marlowe plays Volumnia. The other main cast are Tam Dean Burn, Patrick Drury, Sara Griffith, Michael Jenn, Colin McFarlane and Barry Philips.
I like it, and it is good having some Berkoff Shakespeare on DVD, but Salome, The Trial and East remain my favourites on DVD.
Thanks for pointing out the broken link. As you say searching the NT site doesn't give you Coriolanus. However via another route I did find it, on the NT site, apparently still for sale. I have updated the shop page
http://www.iainfisher.com/berkoff/berkoff-shop-filmed.htmlso hopefully you can order it.
Best wishes
Iain