Here's a little advice on how to make the highest quality, smallest file size videos: Render to still frames, as you mentioned. The biggest reason for this is safety. If Poser crashes 90% through a complex avi render, you have to start again. With still frames, you just continue from where you left off. Then assemble them in any of the packages mentioned above. (I use Premiere or After Effects.) save it as an uncompressed avi or QT as a master file. Use Sorenson Squeeze to create your final compressed version. It's a fantastic app for making seriously small movie files of many types while maintining excellent qulaity. You have a lot of control over the settings. Chris