Glossary of Terms
 
  copyright flag  
  As set in the SCMS standard, a data bit in the Channel Status of a digital audio signal that is used to display copyright information and prevent digital copying. If a device conforming to the SCMS standard such as a DAT recorder detects that the copyright flag has been set, it will not enter record mode.  
  Source: Yamaha  

Related terms:
  CD   DAT   SCMS