Hi
I have a suggestion for a good, free, lossless codec that makes your rendered files much smaller than the animation codec.
I have learned this from one of the tutorials of Aharon Rabinowitz.
It is called Techsmith codec. If you download Camtasia studio5 , the trial version , from http://www.camtasia.com and install Camtasia to your PC the codec ges installed in all you editing applications.
Now open AE, and at the render settings select, quicktime, than at the quicktime settings select the techsmith codec.
I render my videos using this codec .
Hope it helps you too.
P.S I have the ame problem with my open GL , I work with it off.
Gyorfi
http://www.bluefx.net