Thank you, Everyone! I don't really understand what I did that worked, but after reading your suggestions, I set the frame size at 720 x 486 in Poser, and set the Microsoft Video 1 compressor at 100% Quality, AND configured the Temporal Quality Ratio to 1.00. This resulted in the files being imported into FCP just fine - they played in the Viewer and Timeline with no dropped frames, and there was no noticeable increase in time to render in Poser. Thanks again for your time! Yours, Jeff Clinkenbeard