AFAIK, the Dolby AC-3 Pro encoder came with DVD Architect Pro and some versions of Vegas Pro... (but not VP14 *). Once installed, the AC-3 Pro encoder works in SF.
Yip. I'm rather familiar with that thread (unfortunately)!!!
I was "hoping" insofar as Sound Forge Pro 11 is concerned i.e. I was trying to find any possible way around to NOT having to ALSO buy Vegas Pro 13 (as I just bought Vegas Pro 14 Suite only to then find out about the Dolby Digital Pro vs. Studio issue and the problems with burning Blu-ray with surround with the Studio encoder). But: I've given up in disgust, capitulated, and Vegas Pro 13 is "in the mail" as it were.