Still (Static) Menus consist of background graphics or pictures and selectable text and or icons which make up the interactive selection portion of the menu. It may also contain looping audio.
Motion Menus are 30 second looping video segments with the same navigational properties of still menus. They commonly have audio as well.
Menu Transitions are a two second video clip with audio that plays from the result of the user making a navigation selection. Basically they give some interactive motion between menus or video segments.