What a terrific documentary this is. It's based on a collection of newly released documents from Eastern Europe, period video footage and photos, eye-witness accounts and personal interviews with survivors and former SS guards. Many scenes are re-enactments with men in uniforms. The use of CGI technology to recreate the camp and underground gas chambers and barracks is very illustrative and powerfully evocative. Informative interviews with survivors punctuate the DVD, reinforcing what the narrators say, and remind one of the 1970s documentaryShoah [A History of the Holocaust] 4 DVD Set , Import, All Regions. There are things in this video I've never seen anywhere else. This 2-disk documentary is a very thorough and professional treatment of the subject, leaving one feeling informed and rather disturbed when it's over.