property settings : 840x524 resolution, pixel aspect ratio is square. framerate 30
your render settings should match your properties settings
i render with Divx, sony vegas to edit
project tab in render as:best
video tab: custom frame size of 840x524, frame rate 30, aspect ratio 1, video format DivX
hit configure button: 720HD profile under certification profile, quality > speed
if you want to see how mine is rendered, download this video
http://files.filefront.com/DahukaEle.../fileinfo.html
DONT WATCH STREAM
you wont see what the quality of the video is if you watch the stream
but anyway, yea i use 1680x1050, and im satisfied with the quality of my videos.