Chess : V Kramnik's preparation before WC match 2000 vs G Kasparov (27:55) 'Published on Sep 27, 2017'
Pirated material on Youtube typically omits mention of the source and this is no exception. Without too much trouble, I discovered that the clip is a segment from a DVD titled 'My Path to the Top' by Vladimir Kramnik (chessbase.com).
On this DVD Vladimir Kramnik retraces his career from talented schoolboy to World Champion in 2006. With humour and charm he describes his first successes, what it meant to be part of the Russian Gold Medal team at the Olympiad, and how he undertook the Herculean task of beating his former mentor and teacher Garry Kasparov. Kramnik dissects his wins against Leko and Topalov, giving us a vivid impression of the super-dramatic final games of the 2006 match.
The specific segment in the Youtube clip is:-
Part 8 - Preparation for the World Championship match against Kasparov in London 2000, 27:55
A review of the DVD by Prof. Nagesh Havanur is at Kramnik speaks: My Path to the Top (chessbase.com; May 2012).
This ChessBase DVD was produced in 2007, when Vladimir Kramnik was still world champion. On it he describes the nirvana of attending the Botvinnik School, of being nominated for the Olympiad in 1992 by Garry Kasparov, how he went on to dethrone his mentor. Apart from narrative and analysis the DVD also includes previous interviews with ChessBase.
Particularly insightful is the explanation of how GM Kramnik chose the Berlin Defense as his main weapon with Black.