You can play these files over your local network or anywhere you're connected to the Internet - at the gym, at a friend's house, while traveling, etc. Plex can catalog and play your personal, non-iTunes digital library of: And that's just the stuff you can do for free. Better yet, you can share all that media with your Plex-using friends, and enjoy streaming theirs in return. Think of Plex as 'iTunes, but for everything you didn't buy from Apple.' With a Plex media server and apps on your computers, iOS devices, and Apple TV, you can store and stream your collection of non-DRM movies, TV, music, and more to any device, anywhere.