Open up windows media player and go to options and the dvd tab. If you dont have the dvd tab then add this to the registry to unlock it. Its suppose to be a pay for feature.
http://www.winguides.com/registry/display.php/717/
Anyways then click the Advanced button and tell me what you see.
It should be AC3.
BTW try doing this with the video open.
If not you need to get AC3 which you can download from here:
http://www.afterdawn.com/software/vi.../ac3filter.cfm
__________________
Ad Muncher Usage Statistics for v4.7 Build 27105/1624
Adverts removed by Ad Muncher: 1,601,933
Approximate bandwidth saved: 12,515 MB
Counter started: April 2, 2003
Download:
http://war59312.admuncher.com/download.shtml