I am a somewhat new user of Sony Video Studio 9. I am trying to create a DVD using Sony Video Studio 9 and Sony DVD Architect 4.5. I am trying to write my video file in quicktime, mpeg, and windows media format. DVD Architect studio creates the DVD and I have video that looks really nice, but I have no audio. When I play back the DVD on my computer I have video but I have no audio. When I play back the same DVD on my regular dvd player, I have audo, but no picture. Does anyone have any ideas about what may be wrong?