you need to use a post program like Affter Effects or Maya Fusion. I would 1st , render out say atarga file sequence...then(2)take that sequence into your post program , (3) do your post , (4) render out your avi, whatever, with the comprestion of choice. If you want to see a test playback of your scene, use the Fcheck , not an avi file. If your final out put is avi , then use your post tools to acheive a good clean one.
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