Why Sony Won the Format War

Ainsley Jones

Sony officially won the video format war when Toshiba threw in the towel Feb. 19.


It's widely accepted that support from film studios put Sony's Blu-ray format over the top. This Wired article provides insight into why the studios chose Blu-ray over HD DVD.


Both Blu-ray and HD DVD formats use an anti-copying system called AACS, which has already been cracked. Sony's Blu-ray also includes BD+, a sophisticated DRM system that can be patched, as an added layer of protection. BD+ has yet to be cracked, and Lionsgate and Fox studios both cited DRM as the key reason for selecting Blu-ray.


BD+ was created by Cryptography Research, which offered the technology to both Sony and Toshiba, but only Sony elected to take it up on the offer.

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