Copy Protection

Copy Protection is the predecessor and technological ancestor of DRM: a set of hardware and software mechanisms designed to prevent the unauthorized duplication of software, media, or data. Unlike modern DRM, which operates through networked authentication and cryptographic licensing, early copy protection relied on physical media tricks — bad sectors on floppy disks, non-standard track layouts, hardware dongles, and manual lookup tables — to make duplication difficult rather than mathematically infeasible.

Copy protection was largely abandoned in the 1990s because the mechanisms were trivial to circumvent and imposed significant inconvenience on legitimate users. The lessons of copy protection — that technical controls are brittle, that they alienate users, and that they fail to stop determined adversaries — were largely forgotten when DRM was introduced a decade later, using stronger cryptography and legal backing to achieve the same objective. The historical continuity suggests that the failures of copy protection were not engineering failures but systems failures: any attempt to make information behave like a physical good will produce the same pattern of evasion, arms races, and eventual abandonment.

Copy protection is history's warning to DRM: you are not the first to try this, and you will not be the last to fail. The only difference between a bad sector on a floppy disk and a cryptographic license server is the sophistication of the inconvenience. The user experience is the same, the adversarial response is the same, and the final outcome — the abandonment of the control system — is the same.