QUOTE: "Won't this generate a file with .mp4 extension, not .mov, as Quicktime?"
It does generate a .mp4 extension and that quality is not good at all. I was told to download the latest "K-Lite codec package", I tried it but still did not work.
It does generate a standard H.264 file fully playable in Quicktime. The quality of the H.264 file will depend entirely on what settings you use for rendering, it can be pretty bad, and it can be amazing.
What quality do you want? You have to select the appropriate resolution and bitrate for your video, the end result will be good.
Problem solved. Well I was not able to do it in Vegas, But after I rendered an uncompressed .avi, I opened it in Quicktime Pro and compressed it there. It worked wonderful. I had a 3 minute short at 12.6 mb and it looked and sounded great.
Can you exaplain what your problem was? You can do this from Vegas, so I am not quite sure why you had to do it in Quicktime. Also, in my opinion, the mp4 encoder shipped with Vegas created much better quality output than the one shipped with Quicktime Pro.