Burning WMV DVDs

[Howard]

I'm trying to burn a DVD with some Windows Media 9 demo videos featuring 5.1 audio.

Works fine if I use NeroVision Express, but the audio is only 2 channel.

Any ideas? Perhaps I need to split the audio and then re-author it?

Thanks

[Howard]

Well I've split the audio but there isn't a utility on earth that can split it properly or let me re-author it for DVD Usage. I can extract the audio to an LPCM format but nothing works with it