Random shuffle is precisely that - random. Flookey is the exact opposite of random. It has purpose. Not only does it provide recommendations based on advanced objective and subjective criteria, but it is also constantly learning about your personal music preferences. When you just let Flookey run (effectively using it as an auto DJ), simply listening to a song or skipping past it will help Flookey learn about you, permitting it then to continuously and automatically improve the suggestions it generates. You can also take a more active role in guiding Flookey by highlighting a song (or songs) and pressing the Boost button. Flookey provides suggestions based on multiple layers of music analysis and learns which factors are most important to you. As such , it not only combines and improves upon these previous recommendation processes, but it adds an entirely new acoustics layer and personalizes its functionality to you. Flookey's intelligence is based on its ability to learn how your musical mind works. In fact, it works similar to the human mind. During human learning, when a neurological link in your mind is activated, this link gets stronger. When a link goes unused, it gets weaker. Similarly, each time you follow a link that Flookey suggests, that link and the associated links become stronger. When you don't follow a link, it becomes weaker. Thus, over time, Flookey molds to your musical mind just like pair of slippers molds to your foot. Currently, Flookey works with MP3, WAV (44100 Hz), and unprotected WMA, M4A/AAC files.