There are some functions of this app:
1. This is a playlists manager application, it allows you to create and customize your playlists.
2. You can even get the Itunes playlists and Libraries Media in your computer.
3. You can play music and videos from your playlist.
4. You can edit and delete your own playlists but not the Itunes playlists, you can only get them.
5. You must create the password for the first time startup, then every time when you need to create, edit or delete your playlists, you must enter that password again.
This is very useful for presentations and public use as it limits the amending of playlists by unauthorised people.
It also allows easy access to full screen viewing.