DRM

DRM

Lot of different options

Apple Fairplay

Errors

HDCP

HDCP is a form of DRM that's baked into the HDMI standard. If you're watching media that uses it on a device that isn't compliant, you'll get a black screen. I have a splitter that I use to strip it myself because I have have one of those cheap Chinese projectors, and my cable box refuses to work with it otherwise.
Source of this comment ^

Video Tools

Anti DRM

scene ripping process context amazon / netflix

DRM Stripping

how-to-strip-drm-from-wtv

ripping-streaming-video

Tagging

forensic-watermarking

Headers

PSSH

Protection System Specific Header

References

How DRM works video

avplayer-swiftui-player-controls

playing-video-avplayer-swiftui