CDs do have a copy protection mechanism in the form of flags in the subcode metadata that permit 0, 1, or unlimited copies to be made. It is used by standalone

CDs do have a copy protection mechanism in the form of flags in the subcode metadata that permit 0, 1, or unlimited copies to be made. It is used by standalone audio CD recorders to implement SCMS and prevent multi-generational copies. Everything else ignores it.