Originally Posted by harvey

720x480 (NTSC widescreen) 720x540 (NTSC square pix) are the standard for DVD video. Some people uses 720x576 and 768x576 (PAL wide and square respectively). 5 to 8 Mbps is the standard bitrate, with a max of 10.08 Mbps. But you'll end with uncompressed files of 45 Gigs per hour of video (at 24fps), so you may use 3 to 5 Mbps but use the 720+ pixels size if you want to sell those videos as HQ DVD video. This being said, for me 640x480 with a decent bitrate of 2-3k is OK