还是听听官方的专业比较吧

这是MS官方的专业喷语
Why HD DVD?
It's no secret that there are two next-gen DVD formats hitting the market. The first to market was HD DVD and the second (indeed already out in Japan) is Blu-ray. After two years of deliberation, Microsoft made its choice and decided to back HD DVD. The question then becomes why? Here are a few reasons:

Manufacturing: Concerns developed regarding Blu-ray's ability to manufacturer the discs at the capacity originally intended. In fact, with the Blu-ray launch in Japan, the discs are being created at single-layer 25 Gigabyte capacity, which is half of the originally intended 50 gigabytes.
Easy to Damage: Because Blu-ray discs are encoded near the very top layer of the disc with limited protection, the data is literally at higher risk to damage. Conversely, HD DVD maintains physical protection similar to standard DVD.
Copy Protection: Blu-ray utilizes not one, but two different forms of copy protection, adding an extra layer of protection and complexity that just didn't appear necessary.
HD DVD Benefits
What is it that HD DVD is doing that helps differentiate itself from Blu-ray? Here are a few nuggets to chew on:

VC1 Compression: While both Blu ray and HD DVD players are required to be compatible with three different compression technologies (including VC1), an intriguing trend has already begun. Content providers (movie studios) for HD DVD are nearly unanimously using the brand new VC1 compression technology, whereas Blu-ray providers are sticking with the ten-year-old MPEG 2 compression that has been used on standard DVDs. With VC1, HD DVDs are able to compress much higher quality video into a significantly smaller package.
Capacity: Dual layer 30 GB HD DVDs are already available, whereas Blu-ray has only released its single layer, 25 GB disc.
Hybrid Disc: HD DVD offers the ability to encode both a regular DVD format and HD DVD format on the same disc. If you purchase a hybrid disc, you can flip to one side and play the movie on any standard DVD Player, and when you do get an HD DVD player you can flip to the other side and play it in true HD.

[ 本帖最后由 sonicteam 于 2007-1-9 13:38 编辑 ]

LS的意思是 现在BD已经大卖特卖,而且已经秒杀HDDVD了吗??

不能因为喜欢SONY,就把SONY所有的东西捧上天,

我思维停留在什么时间并不重要的,重要的是你的思维已经僵化到将一个品牌的产品无限神话的地步了,这和某教的一些FANS的行为非常类似