I'm only interested in being able to import a series of sequentially-numbered 3D renders and outputting them as a SWF animation file. I know I can do that with Xtreme4, but in that case I have to import each frame manually and after the first hundred frames or so that gets old. I tried a program called "Easy Gif Animator Pro" that claimed SWF output but it churns out SWF files that are about ten times the size of the ones Xtreme4 creates (30 16kb frames came out as over 4MB). Bust.

Paying the huge cost of buying the Macromedia software is overkill for the single purpose for which I need it. Anyone know of an alternative that doesn't cost hundreds of dollars?

Many thanks in advance.