5.1 sound

[trojan71]

I'm able to create an almost perfect back-up copy of my DVD's, but I am not able to reproduce 5.1 Digital Surround on the back-up? I can only get Pro logic or 5 Channel stereo. Is there a seperate proggy for doing the digital sound or am I doing something wrong? I RIP with DVD Decrypter, COMPRESS with DVD2ONE and Burn with NERO. So apart from no 5.1 Surround I'm happy but would like to figure this out so any help would be appreciated.

Cheers,

Trojan71