The following is a statement by HD DVD:
"Today's announcement by 20th Century Fox regarding its support of the Blu-ray Disc format is surprising and misleading in terms of which format provides for more robust copy protection.
"The content protection system of HD DVD provides an equivalent level of security as the system advocated by Fox for Blu-ray. We also believe the Blu-ray disc format and proposed copy protection system may result in playability and reliability issues for the consumer.
"HD DVD provides robust, renewable and standardized content protection coupled with proven reliability, cost effectiveness and flexibility which is why many major film studios have announced support for the HD DVD format."
From eCoustics