I am experiencing a pulsating artifact in Compressor MPEG4 exports of self-contained movies. The artifacting is especially noticable in stills with text - the more text the worse the pulsating.
It looks like ringing, but is not constant. It tends to muddy up the background picture near the text. I am exporting SD from FCP 6.0.6. What am I missing in the workflow that causes this?