Using vegas 9 platinum and when I go to make a movie and select dvd it does all it's stuff and ask to send to architect, I say yes, it opens dvda 4.5 studio and then says .mpg is not a supported format! (that vegas just made with an ac3) I renamed the mpg .vob, m2v and no luck. Advice greatly appreciated since I'm on a time crunch and a bit new, I'm used to fcp. Thanks SO much