Check out this preview:
http://www.unreality.dk/news/news_small.as...ber=4601&Page=1

The last paragraph on page 2 is about the music in UT2003, and the article mentiones it will be in the OGG format.

AFAIK, this will be the first major Windows game that will use the OGG format. Is this correct ?

(I specifically mention "Windows" game because Mandrake Linux Gaming Edition contains a special edition of The Sims with the music converted to OGG).

Oops... I guess I was a bit too fast. Apparently, it's not the first.

The article is also mentioned on Slashdot:
http://slashdot.org/articles/02/04/17/2348206.shtml?tid=127

And according to the replies, Serious Sam: The Second Encounter used OGG too.

People know a good thing when they see it.

That will be great for people to easily add custom sounds/music to their maps. And I think the first time I heard OGG used in a game was Operation Flashpoint over a year ago.