How do I get images to be the right ratio?

When you drop a 720×480 image on the timeline you may notice that its squashed a little. This is especially noticeable if the image has a circle in it and the circle appears as an oval. What you need to do is bring up the media properties for the 720×480 still and change the pixel aspect ratio to 0.9091 (DV/D1). This is correctly display the image.