The following notice is usually present in movies:
This motion picture is protected under the laws of the United States and other countries. Any unauthorized reproduction, distribution, or exhibition of this motion picture or any part thereof including the soundtrack may result in severe civil and criminal penalties.
Any unauthorized reproduction, distribution which means related to piracy.
But camera recordings and BluRay/DVD piracy started in the 21st century. Then why is this MPAA warning also present in 80s movies?