I have Sony Vegas Pro 13. I am trying to render a video that I created into Blu-ray. When I select any of the Blu-ray options under Main Concept MPEG-2 and render, I have no sound. I have clicked on the Blu-ray options and selected the customize template tab. I notice that under the audio the "include audio stream" is not selected and I am unable to select it. My video is made up of pictures I have taken and a video camera. I then add a song from my library for background music. But I cant get any of the sound to appear in the final product. How can I render in Blu-ray quality with sound? And if for some reason it is no possible, what is the next best render quality? I am trying to make Blu-ray DVDs for grandparents for Christmas. Thanks.