Analog Protection System

The Analog Protection System (APS), also known as Copyguard or Macrovision by some people, is a VHS and DVD copy protection system originally developed by Macrovision Corporation.

List of customers

• 20th Century Fox Home Entertainment (VHS: 1986-1998, 2004-2006; DVD: 1998-2020)
• Artisan Entertainment (mainly on DVD releases and on a few blockbuster VHS releases in the 1990s)
• Bandai Entertainment
• Disney Educational Productions
• DreamWorks Home Entertainment (before 2002 or 2003)
• FUNimation Entertainment
• HBO Home Entertainment
• Home Vision Entertainment
• Jive Records
• The Lyons Group
• Media Home Entertainment
• MGM Home Entertainment (1986-1993)
• New Line Home Entertainment (on early DVD releases, as well as on the VHS of Teenage Mutant Ninja Turtles II: Secret of the Ooze and on some pre-Time Warner Turner VHS releases)
• Paramount Home Media Distribution (1990-1993, 1998-2013)
• Pioneer Entertainment (mainly on DVD releases)
• PolyGram Video (1997-1999)
• Sony Pictures Home Entertainment (on some rare occasions on VHS: 1996-1999; DVD: 1997-2003)
• Sony Wonder (on some 2006 releases)
• United Learning
• Universal Pictures Home Entertainment (1986-2007)
• Viz Video (mainly on DVD releases)
• Walt Disney Studios Home Entertainment (1986-2014, except a few rare occasions including: all LP-mode releases, some copies of the 1995 no previews VHS of While You Were Sleeping, and some early Walt Disney Mini-Classics releases like Ben and Me)
• Warner Bros. Home Entertainment (1986-1993)