Hi, Thanks to those that have helped me so far. I'm new to Poser but I'm getting the hang of it pretty quickly (I think). Bear with me. I have a question about the Alpha Channel when I export. Basically, I export animations as Quicktime.PNG's with the Alpha Channel intact (Millions of Colours +). Then I open them up in After Effects to overlay on live-action or artwork, etc. I notice that when I change the default aspect ratio of my Poser videos eg. say from 490 x 500 to 720 x 480, it does something weird to my Alpha Channel. In After Effects it says that it is now Straight Unmatted instead of Pre-Multiplied. Anyway, the result is 'jaggy edges'! My question is, how do I make standard video aspect ratio animations eg. 720 x 480, 720 x 576, 768 x 576, etc and still keep a Pre-Multiplied Alpha Channel? I've got a workaround, which is to keep the aspect ratio the same and just increase the width to, say, 720 (which makes the height 735). Then I resize things in After Effects. Still, it would be nice to do it all in Poser. Any ideas anyone? Thanks in advance, ALEX hybrid@bigpond.net.au