When I record a video, the HUD box that says 60 appears in the playback video even though I have it set to not record the HUD box and I do not see the HUD box while recording.
Make sure that Action! is not in Game/Application mode while you are playing your video in another software. Action! will simply connect to the application and show its frame rate if you are running Action! in Games/Application mode. This does not occurs with Action! player.