I am having a similar issue inside FCP
I have a DV clip with the following settings:
Frame Size: 720×480
Compressor: DV/DVCPRO – NTSC
Pixel Aspect: NTSC – CCIR 601
Field Dominance: Lower(Even)
and my sequence settings of:
Frame Size: 720×480 NTSC DV(3:2)
Pixel Aspect Ratio: NTSC – CCIR 601 / DV (720×480)
Field Dominance: Lower(Even)
Compressor DV/DVCPRO – NTSC
When I export using quicktime Conversion, as a .mov file, I always get a 640×480 video, even though I specify a NTSC 720×480 4:3 file.
When I export using compressor as a .mov file at 720×480 with a pixel aspect ratio of NTSC CCIR 601/DV, the video comes out as 640×480
Please help! Any ideas as to what is going wrong?