How can I force WinDVD BD for Vaio to play stereo only?

[AlanW1980]

I am watching a blu ray (Band of Brothers) and it is playing the audio in DTS-HD for the main feature, the problem is that it makes it all very quiet and difficult to hear. How can I force it to downmix that to stereo output? when I change the audio track to French or Spanish the mix is stereo and it's great. How can I do that for the English audio track?

Thanks
Alan