Microsoft debunked the story posted earlier today suggesting that Microsoft still considers using the HD-DVD player for games.

I'm seeing lots of speculation about our upcoming HD DVD Player, and whether we have plans to publish HD DVD games. The answer is no.
Since announcing the Xbox 360 HD DVD Player accessory at E3 2006, we've been clear that it is designed exclusively for playing HD DVD movies. It will not play games on HD DVD.

At this point, we haven't seen anything to suggest that next-gen DVD formats offer a better game experience than current DVD. What we do know is that these formats will bring added cost to game developers, disc manufacturing, and could even result in added costs and longer load times for the consumer, which would negatively impact the game experience. We are focused on making great HD games available to consumers now, and games like "The Elder Scrolls IV: Oblivion" clearly show that beautiful high def graphics and huge, immersive worlds to explore are possible on the DVD9 format.

News-Source: gamerscoreblog.com"