Actually, UV does work a lot like Disney's system. A few differences. Disney is backed by Disney, UV is backed by the D.E.C.E....
https://en.wikipedia.org/wiki/Digital_Entertainment_Content_Ecosystem......which is most of the studios, ,
consumer electronics manufacturers and retailers,
network hardware vendors and such. The big difference is that Disney and Apple are tied at the hip. Apple joined Disney right from the start. Disney gave Apple an exclusive, and that got the ball rolling and others followed. Apple has not joined UV, that's the real difference. If Apple joined UV, all codes could be used in itunes, Just like Disney.