It is assur whether anyone involved is Jewish or not (Choshen Mishpat 348:2 and 359:1).Some say that it is even d’Oraita.
The disks I have seen say that you cannot even play them for others but I doubt if this is meant seriously except if you are selling tickets (lawyers like to put in absolute language and then judges put in the ifs, ands, buts and maybes). What if you have a thin wall and your neighbor can hear even if the volume is reasonable?