Heres a better way - do not render directly into a movie - you have much more control over the final movie if you render into a sequence of single tiffs. Then load the sequence into Quicktime, and export it as movie - but you need QuicktimePro in order to make this. The advantage is that you can test any type of compression you want - if you render directly into a movie and when you recompress it, you will get unpredictable results. Mungo