Here's an interesting wrinkle into the format war.
According to a story from DVD Town, the DVD Forum recently approved a 51GB version of the HD DVD format disc. This is a large upgrade from their current capacity of 17 GB that their dual-layer discs can hold. This 51GB disc will be a triple-layered disc, and will have a 1GB edge over Blu-Ray's 50GB dual-layered discs.
The interesting wrinkle part is that Disney, normally a big Blu-Ray supporter, voted for the upgrade at a DVD Forum meeting in September, even though, backers of opposing formats normally don't vote for upgrades to their opponents. The meaning of this vote is unclear, but, of course, speculation is abound, with some feeling that Disney is starting to sway towards HD DVD, perhaps trying to play both sides of the fence.