The Analog Protection System (APS), also known as Analog Copy Protection (ACP), Copyguard or Macrovision, [1] is a VHS [2] and DVD copy protection system originally developed by the …

Dec 14, 2021 · The KS_COPY_MACROVISION property indicates the level of Macrovision encoding on the media (levels 0 to 3). The decoder may use this information to enable or …

Macrovision is a copy-protection system from the company Macrovision Solutions Corporation, first used on the 1985 VHS/Betamax/LaserDisc of The Cotton Club. On July 16, 2009, the …

The name "Macrovision" is commonly used to refer to the product which is officially called "Macrovision Video Copy Protection". The original Macrovision copy protection system was …

Although Macrovision video copy protection has existed for nearly 15 years, it wasn't until the recent acceptance of DVD in mainstream consumer markets that its existence was felt at all.

Aug 4, 2025 · Macrovision Quality Protection was a widely used analog copy protection system employed on VHS tapes and early DVDs, particularly during the late 20th century and early …

May 24, 2021 · Macrovision is a company that sells copy protection products. Macrovision Corp. has developed and sold copy protection products for VHS, and later a system for DVDs which …

Macrovision is a copy protection technology used in video and audio media to prevent unauthorized reproduction by detecting and disrupting recording signals. It works by adding a …

How do VHS tapes prevent you from bootlegging a copy of a movie? Find out how Macrovision works.

The Macrovision Analog Protection System (APS), also known as Copyguard by some people, is a videocassette and videodisc copy protection system originally developed by Macrovision …