Scott Kirsner has a round-up of Warner Bros. decision to go Blu-Ray exclusive. The consensus is that this pushes the market to 70% Blu-Ray, which should be enough to kill HD-DVD.
Sony must be happy. They get a royalty for every Blu-Ray disc pressed. Of course, Blu-Ray isn’t out of the woods yet. Consumers are rapidly adopting digital delivery over old-fashioned optical disk media.