Thanks Craig you definitely have got me on the right track! I can output a good quality clip in the .avi format using either Apple Planar RGB or QT Pro using None as the codec. In both these cases, however, the file size increases dramatically.
This may be a stupid question but if I just output a QT .mov file and change the extension to .avi after the fact the file is the same high quality but now I’m working with a much smaller file size. Wouldn’t this work in a player that requires .avi?
I believe the client is more interested in having clips in the .avi format than they are about which codec is used.