Anti-copy protection system for CD-ROM and/or DVD-ROM

摘要

The system is conceived to avoid the reproduction of the files stored in a CD-ROM, by the creation of a ring in the CD-ROM. For that purpose and corresponding to each file to be protected, one or more files destined to be deliberately damaged are introduced into the CD-ROM during the mastering process, while it is being recorded with a laser beam by changing the laser intensity in such a way that when trying to download the contents of the CD-ROM for copying, the arising of said damaged files interrupts the data reading and, consequently, interrupts the recording.