Digital Rights Management 40年史 1985-2026。Macrovision (1983 VHS Copy Protection・Color Burst操作・3商標 Macrovision→Rovi 2009→TiVo 2019合併)・SCMS Serial Copy Management System (1989 DAT/MD・Audio世代Copy制限)・CGMS-A Copy Generation Management System Analog (DVD Output)+CGMS-D Digital・CSS Content Scramble System (1996 DVD-Video Lic・40bit弱暗号・1999年DeCSS Norway Jon Lech Johansen 15歳破られる→現在も判決係争)・Region Code DVD 1-6 Country Lock・CPRM Content Protection for Recordable Media (SD/Blu-ray Audio)+CPPM Pre-Recorded・Microsoft Windows Media DRM PlaysForSure→終焉 2007・Apple FairPlay (2003 iTunes Music Store・2007 EMI契約解除→DRM-Free Music)・FairPlay現役: iTunes Movie+Apple TV+Apple Music+Apple Books・AACS Advanced Access Content System (2006 BD-ROM Disc・MKB Media Key Block・2007年破られる Doom9 forum)・BD+ Self-Modifying Code (Cryptography Research)・HDCP High-bandwidth Digital Content Protection (2003 Intel・HDMI/DVI/DisplayPort・1.x→2.x→2.3 2018)・DTCP-IP Digital Transmission Content Protection (1999 5C: Hitachi+Intel+Matsushita+Sony+Toshiba・LAN→DLNA RecBOX)・PlayReady (2007 Microsoft DASH Smooth Streaming・PlayStation 4)・Widevine (2010 Widevine Tech→Google 2010買収・YouTube Premium+Netflix+Amazon Prime Video Default・L1+L2+L3 Security Level)・Marlin (PanaSony+Philips+Samsung+InterTrust)・Adobe PrimeTime DRM (廃止 2018)・DASH+HLS+CMAF+ClearKey EME Encrypted Media Extensions W3C (2017 Browser Standard)・¥0 OSS-¥¥¥¥¥/Year License 2026。