I have been using SB 3 and DVD-Lab for a couple months and have successfully burned a number of DVDs. I am working on a project now and when I burn the DVD I get no audio. I am editing in SB where the audio track plays fine, make movie save to disk, create DVD with DVD-Lab dragging both the audio and Video track onto the time line where both are showing. When I play the DVD on my set top or on my computer there is no audio.
When I look at the DVD contents in Windows Explorer there is Audio and Video_TS.