CDH TrayPlay - Version 3.0 Setup audio playlists for hours of listening enjoyment. Once a playlist is setup or loaded, and play begins, the program resides conveniently in the system tray, out of your way. It can then be accessed with a right click for options or double-click to restore the program! Supported formats include: MP3, CD, WAV, MIDI, WMA, AIFF, AU, SND, Audio Playlists, etc! Many advanced features are supported (drag & drop, hotkeys, randomize, skins, and more!