If you were hoping to a sort of truce between the two Hi-Def disc formats in the form of Warner's Total HD disc, you'll have to wait a little while.
The disks which are said to play on either HD-DVD or Blu-ray players have been delayed until sometime in 2008. Speculation is that they are having difficulty getting both formats to play nice on the same disc.
I wouldn't be surprised if they are holding off because they see a possible end in sight to this format war. I'm not sure that I would be quite so optimistic about a winner being declared this year, maybe sometime next year. If one of the two standards became obsolete, there would be no need for Warner's Total HD discs.
Warners delay launch of Total HD Until 2008 [via gizmodo]