Content Protection - SD Association Content Protection Developers SD Standard Overview SD Family Capacity (SD/SDHC/SDXC/SDUC) Bus Speed (Default Speed/High Speed/UHS/SD Express) SD Express Implementation Overview - In short videos and articles SD Express Member Products Boot and Extended Security Features (RPMB and TCG) Boot (secured and fast) TCG RPMB Speed Class Application  Performance Class Low Voltage Signaling Content Protection Host Controllers SDIO/iSDIO Wireless LAN SD TransferJet SD ASSD smartSD Embedded SD Application Formats SD-Audio SD-Video SD-Binding SD-SD SD-SD eBook SD Express / UHS-II Verification Program (SVP) Verified Product How to Start Using SD Standards in Your Product Use and Licensing Developers Developers SD Standard Overview SD Family Capacity (SD/SDHC/SDXC/SDUC) Bus Speed (Default Speed/High Speed/UHS/SD Express) SD Express Implementation Overview - In short videos and articles SD Express Member Products Boot and Extended Security Features (RPMB and TCG) Boot (secured and fast) TCG RPMB Speed Class Application  Performance Class Low Voltage Signaling Content Protection Host Controllers SDIO/iSDIO Wireless LAN SD TransferJet SD ASSD smartSD Embedded SD Application Formats SD-Audio SD-Video SD-Binding SD-SD SD-SD eBook SD Express / UHS-II Verification Program (SVP) Verified Product How to Start Using SD Standards in Your Product Use and Licensing Ready for the Secured Digital Content Content Protection for Recordable Media (CPRM), the content protection technology used for SD standards, is key to enabling a distribution system for music, video, etc. CPRM provides a high level of protection against illegal copying. The content protection technology was developed by the 4C Entity, LLC,The digital contents copyright protection technology licensing organization of IBM, Intel, Panasonic, and Toshiba. The SD memory card CPRM function has the following features: Success of mutual authentication enables host to access card protected area. The protected area consumes small memory area because a content key is supposed to be saved instead of a large content. Revocation feature can prevent a specific host from accessing card protected area. SD CPRM Host Devices can playback an encrypted content mutually that is stored in an SD memory card. CPRM which is also used for DVD content protection was mandated on all SD memory cards. In March 2018, CPRM became optional with SD Specification Version 6.10. The following symbol have been newly defined for the purpose of distinguishing SD cards with out CPRM from those with CPRM. The use of this symbol on SD card package and Web/catalog is mandated in the Japanese market only. As for the markets outside of Japan, the use of this symbol is optional.