IMO, I wouldn't use PS3MS with Rev3 files. Not only are they always messing with their encoder settings, there is no need. Go over to Rev3 with the PS3 browser, download the 30_FPS MP4 file to the PS3 and watch them directly there. You don't have to (effectively) download the file twice, it has much better picture quality and there is way less hassle.
If you must watch the shows in Xvid format, then sorry, I have no idea.
When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.