When doing animation, choose always individual images in a 100% JPG format and assemble them later in QT or another program. The reason is simple. If you have an "accident" with your computer, you can restart your animation where it stopped. I have never tried to apply animations to an alpha plane, but it should be possible. Only imagine the time you need to do so:-(. You need to prepare each alpha and then apply it image by image. Good luck:-) Guitta