The Concept is simple, The user can load .mp3 files from a folder into the game at runtime. After loading, the user can animate the lights in the game based on the music. Once done, The user can play the music while playing the game during online multiplayer too. If the user hosts a server, he/she can play the loaded audio files from his/her computer, if the user is a client then there is an option to send the user's audio files and lighting animation to the host So the host can play them. Everyone the on the server will be able to hear the music. So, my question is, If the user places .mp3 of a song by an Artist which I don't have license to(because I can't tell what the user will put in the folder) and then plays the music during online multiplayer, Will it be a copyright infringment? Can I get sued for licensing issues? Even if I didn't provide those music files with the game? I need to decide whether to put this feature in the game or not. It will probably be a commercial game. Thanks for your help.