I for one would transcode the H.264's. Even if they fail to fix the problem, it's good to use production codecs. H.264 image quality doesn't hold up well when re-rendering, and they give AE problems if you alter time in any way on H.264 footage.
What version of QuickTime are you installing?
Thanks Dave I am converting the files now so lets see if anything changes. Szalam, I downloaded the 7.7.6 ... thanks
update: I converted all the H.264 footage which were in the project to WMV. And I was able to test export with AVI and it turne dout fine (like 10 seconds). However I still got the Error message: "After Effects unable to render error an output module failed, a filme may be corrupted or damaged. Error-1610153464 " when I tried to export H.264 QT..
I don't know what to do now, how can a problem which did not exist suddenly come up. How can I export a QT file? with AVI it will be massive!
QuickTime H.264 is terrible. Don't use that.
Use the AVI you created in your Adobe Media Encoder and use the H.264 settings there.