Honest question: How relevant is DRM in preventing piracy in non-interactive media?<p>Consider a theoretical world in which DRM would reliably prevent unauthorized copying or decryption of DRM-secured content 100% of the time. The obvious attack vector for pirates would be to play the video and audio and just capture it with a camera directly in front of the monitor, and a microphone attached to every speaker.<p>Are pirates doing this today, or is it just not worth it because DRM schemes are easily circumvented? I&#x27;m quite confident that copying of the physical signals should produce good results. There are consumer cameras capturing 4K video, and a video that&#x27;s distorted by a non-orthogonal view on the screen can trivially be fixed in software. (It loses some fidelity, but you should still be able to get near-full-HD output out.)