I am using Compressor 1.2.1 on a G4 Powerbook.
I have been editing skateboarding footage shot on DV with Final Cut Pro
Using the Mpeg-2 60 min HQ encode width 720, height 480, aspect ration 4:3, field dominance bottom first I still get a file that says 640x480.
And actually this has not presented itself as a problem because DVD Studio Pro recognizes the files as 720x480.
My concern is this, I have brought the compressed Mpeg-2's into FCP sot that I may preview them on my broadcast monitor . They import as 640x480, which makes me think that DVDSP is stretching the files to 720x480, there by compromising quality.
Whatever the case may be, I have the preset set up to output a 720x480 file, but finder says it's 640x480 and FCP agrees.
While NTSC DV has a 3:2 pixel ratio (720x480), the image aspect ratio is always either 4:3 or 16:9, which is why you have those settings. Its being encoded internally as 720x480. The 640x480 QuickTime reports is the post-aspect-ratio-correction size - QuickTime Player squishes the video to 640x480 to provide the 4:3 aspect ratio.
So, don't fret it. It's all working according to plan.