A multilayer digital content protection system, particularly for a digital cinema
application is provided. Detection of unauthorized activity at the time it is occurring
is provided using a first protection layer. Two layers of imperceptible watermarks,
one camcorder viewable and one camcorder invisible are inserted into unauthorized
copies of the digital content with second and third protection layers. Strong near
infrared is also used to degrade the quality of any attempted unauthorized recording
of digital content using a camcorder.