in catalyst - the frame rate is set by the screen refresh rate or the playback rate of the application - not the quicktime file movie rate.
so it doesnt matter what the client renders his content at -
i ignore the quicktime frame rate.
you could get your client to render their movie at 25fps it wouldnt matter - unless their rendering program added removed or dropped frames-
with the d2 unit - its critical that the screen is set to 60Hz.