i was posting here a while back about having troubles exporting mpeg2 and someone had told me that mpeg2 on dvd has a pixel dimension of 640x480. but i was just looking through the dvd faq at dvddemystified.com and found this: [
dvddemystified.com] stating that the only ntsc mpeg2 sizes are 720x480, 704x480, 352x480 and 352x240. so then what's up with this 640x480 business?