[Stephen]

So MS have confirmed that DD via optical will be coming soon. It was left out due to a software issue.

http://www.pocket-lint.com/news/1253...ter-the-launch

director of product planning Albert Penello said: “Dolby Digital is coming post launch. This was a SW scheduling issue pure and simple, and I know people are disappointed, but we will have it. “Anyone with an HDMI receiver should be fine, as we pass the uncompressed 5.1 and 7.1 through HDMI as well as DTS. Even if you have a Dolby only HDMI receiver (which I'm not sure exists), you will still get 5.1 or 7.1 sound since those receivers should accept uncompressed surround.”