ETSI TS 102 825-4是数字视频广播（DVB）内容保护和复制的规范 管理（CPCM）系统。它包含适用于CPCM所有部署的通用规范。 针对内容格式、存储格式、家庭网络生态系统和 特定于应用程序的物理接口包含在TS 102 825-9[5]中。

ETSI TS 102 825-4 is the specification of the Digital Video Broadcasting (DVB) Content Protection and Copy Management (CPCM) System. It contains the generic specification applicable to all deployments of CPCM. Technology-specific adaptations for content formats, storage formats, home network ecosystems and application-specific physical interfaces are contained in TS 102 825-9 [5].