These measures rarely posed much of a challenge to the dedicated efforts of crackers, but the copy protection in the classic 80s game Dungeon Master for the Atari ST and Amiga was next-level.

The prevention of unauthorized copying of software or media. From the 1950s to the 1980s, software copy protection was not an issue. Vendor support for mainframes and minicomputers had always been ...

This early copy protection worked by distributing the game's data across unusually numbered disk tracks. The TRS-80's operating system required specific instructions to read these tracks ...

"We share the concerns of consumers regarding these discs, and we are instituting a program that will allow consumers to exchange any CD with XCP software for the same CD without copy protection ...