I just downloaded Music Maker 16 Premium Download Version,  Sound Package,  Synthesizer and effects. Instrument package 1, Instrument package 2, Demo songs, and Introductory videos. I found the directory where the videos are installed but they are MXV files and Windows doesn't know how to play them. I can find anywhere in the menus of Music Maker to play them either. Its like getting a treasure chest with a lock on it, what do I do?