Is it possible to play Quicktime (*.mov) media clips?
Yes, you need to install first a Quicktime decoder codec, e.g. like Quicktime Alternative. In paused mode, the player framepositioning is not accurate, either by using the PlayerTrackbar, either by using SetPlayerFramePosition or SetPlayerTimePosition. Check that you are not using the VMR9 to display the video. The VMR9 buffers 3 video frames and this is the usual source of this problem. Use the VMR7 (same quality), or the standard renderer (VideoRenderer = vr_VMR7 or vr_StandardRenderer).