DivX Video Aspect Ratio?

MysterQosmio81

New member
I want to be able to keep the original video aspect ratio in DivX, but scale it to fit the screen.
So, I have a video that's formated for 1440x1080 resolution 4:3 aspect ratio.
My monitor is configured for 1440x900 on a 17" widescreen at 16:9
I tried entering custom aspect ratios in full screen mode, but either it stretched wide or there was a blakc border all the way around. How do I calculate this, with 2 different aspects and resolutions?
 
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