Actually I think I confused you. The AVI from the camera, into the computer. Took that film, used Vegas 4 to edit it, then rendered it as an mpeg1 movie. When I bring the veg file created in Vegas 4, into Vegas 7, that’s when the sound plays for only a second, and the timeline does not show audio. Or, if I bring the completed mpeg 1 video I rendered in Vegas 4, into Vegas 7, the same thing happens. It shows up in the timeline, plays fine, except for the audio problem. Sorry for not being clear. I appreciate your trying to help.