Okay…
My sequence settings are as follows:
720×480 NTSC DV (3:2)
NTSC – CCIR 601
Anamorphic Checked
Top: Straight export from my time line using Export > Quicktime Movie
Bottom Left: Export using Export> Quicktime Conversion with the size set to NTSC 720×480 4:3 (ignore my poor titling in the image.)
Bottomr Right: Export using Export> Quicktime Conversion with the size set to NTSC 720×480 16:9

Which one is right? I’ve been asked for a 720×480 w/ square pixels. Is 720×480 considered 16:9?
I’m simply really confused, I’ve been doing this for a few years using my panasonic HPX-170 i’ve never had this much trouble before. Maybe because the source video I am getting is 640×480.