While attempting a photoworks buffer render of an animation of an assembly, I get the error "the avi save operation has failed".

This happes at various places during the render, on different attempts.  This time at about 90% complete.

The error notice has the following suggestions,

1: choose a different video compressor (I am renderning it uncompressed so this does not apply)

2: adjust the height and width (I am using standard 720p widescreen 16:9 ratio)

3: need more free space (the flash drive I am saving to has over 5GB space left on it.  Pleanty for the small amount remaining to render)

Anyone have any usefull suggestions?

Thanx in advanced for the help.