Using Power Director 9, I capture a file from an HD video camera, then preview it & burn to disc. I skip the "Produce" phase, and do no editing. In the preview all is well, but when I burn to a DVD and play it back, the audio ends about 3 seconds before the video on a 58 minute clip. I'm wondering if there's a problem with the DVD burner driver? The same thing happens whether burning a standard DVD or a Blu-Ray, and with either of the 2 burners I have installed. Is this a Power Director problem?
Note: When I burn to a folder rather than a dvd, the same problem occurs in the resulting movie. Aspects of this problem seem to have been around for a while, considering posts from Tom Sexton and Dbl10s. Has anyone nailed this down?

HP Pavilion h8-1200z; Windows 7 Home Premium. No error message, no mods.