Hi Mick,
Sorry to bother you again. I am installing Swoopware, the computer is running Windows 8 and Vegas Pro 12. I have downloaded the latest codec packages you recommended and that fixed the video issue, but I am now having an issue with the source audio. The audio and video tracks are grouped in Vegas and the music tracks work. The source audio plays when I preview the clip, but there is no source audio on the rendered video. I have looked through the help forums and haven't found a solution for this yet. Do you have any tips?
Thanks again,
Angela