OPTICAL DISC AND A REPRODUCTION METHOD THEREOF TO MAKE THE REPRODUCTION OF AN ILLEGALLY COPIED OPTICAL DISC IT IMPOSSIBLE

摘要

PURPOSE: An optical disc and a reproduction method thereof are provided to distinguish an illegally copied optical disc by detecting information of the optical disc.;CONSTITUTION: An optical disc(100) comprises a clamping area(110), an information area(120), and a mirror area(130). The mirror area comprises one or more hallmarks and is separated over 59mm from the center of the optical disc. The hallmarks are one or more shapes selected among circular, elliptical, and polygonal shapes. The width of the hallmark is less than 1mm.;COPYRIGHT KIPO 2010