rs170a wrote on 6/7/2009, 6:30 PM
You need to install DVD Architect to get AC-3 capability.

donp wrote on 6/8/2009, 6:54 AM
OK, but in my previous versions of Vegas including this one on my old PC, I had access to to the Dolby Digital pro authoring without DVD Ark installed. (I don't use it) I assumed it was becaus the Sonic Foundry ac3 plug in was utilized. But now I can't seem get it installed so Vegas will use it. I guess I will install DVDA eventhough I did't have to in the past.