Media Universe is a photo database that adds various new functions to Windows Explorer. It is used like the file manager, but offers a number of improvements like virtual categories, automatic picture downloading, photo CD support and networking. Media Universe is a photo database that adds various new functions to Windows Explorer. It is used like the file manager, but offers a number of improvements like virtual categories, automatic picture downloading, photo CD support and networking. Unlike other programs, you don't have to start it, so it is always available when you use Windows Explorer. With Media Universe you are no more limited to the typical tree-like organization that you know from the file system. You can add one photo to many different categories, or aggregate files from various folders in a single category.