There is a well-known issue with ProRes files from AE:
https://www.capria.tv/2007/06/19/prores-422-after-effects-gotcha/
Adobe and Apple are working together to fix the issue. Hopefully, this will be addressed soon.
DVCPRO HD in Quicktime containers (as captured by FCP) works just fine. Same for Apple Uncompressed, DV50 and other FCS-specific Quicktime codecs.
I haven’t tried exporting ProRes or DVCPRO HD from PS CS3 Extended. Other Quicktime codecs I tried worked perfectly. Importing all kinds of QT files also works fine. You can render a video file directly from PS CS3 Extended, or you can also take PSD files with video layers to AE and render from there.
Bear in mind that the whole Production Studio CS3 costs as much as buying AE + Photoshop Extended as point products. And you get Illustrator CS3, Flash CS3, OnLocation CS3 (DVRack, Bootcamp only for now), Premiere Pro CS3 and Encore CS3. Even if as a FCS user you don’t use PPro or Encore as your main editing/authoring apps, there are still worthwhile features like Blu-Ray disc authoring on the Mac.
Adolfo Rozenfeld
Buenos Aires – Argentina
ar(AT)adolforozenfeld.com