I need to create a 728x200 ad banner that is not larger then 60kb. I have a project in AE, with some text, shapes and 3d camera movement. Total running time 14sec. The resulting swf is around 1.4mb which is too big and I can't get it down to a smaller size. I tried to reduce the number of frames to 12fr/s (that doesn't look very good, but might be ok). The resulting file was around 700kb, which is still too big.
Any suggestions on what I could do here?
Any help woul be really appreciated.
Rethink your design approach and don't use AE. Even the most compressed SWF will never go below a certain size - it's simply an embedded JPG sequence and well, most of the time there is really no need for all those fancies. A couple of natively animated still images in Flash would be much more efficient and at those sizes nobody will know or care whether the 3D tracker was used a "motion blur" is actually just a linear blur on an otherwise static image. Sorry to say so, but your whole approach is just wrong. You're trying to be to exact and academic about it.
Don't export .swf files from After Effects.
If you need something to play in Flash Player, render and export a .f4v file and embed or link that in a .swf file in Flash Professional.