Is this HD or SD? Is there video footage or is all of it motion graphics you create in AE?
I would work in whichever format you want and then nest your comp in the comp of the other frame rate when you're ready to render that country's version. AE simply interpolates the keyframe data so it works out really nicely.
Oooh, ooh, I just remembered! Read this thread: http://forums.creativecow.net/thread/2/997997#998002
They were discussing this very thing.
- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')
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