The current DRM proposal [1] requires specific platform-specific CDMs (content decryption modules) that are not prart of the the browser. Those can be anything,

The current DRM proposal [1] requires specific platform-specific CDMs (content decryption modules) that are not prart of the the browser. Those can be anything, from an open source module with cross-platform support to (most likely) a closed-source binary distributed by the OS and not available for use by specific browsers. [1] https://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encrypted-media.html https://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-med... More reading https://www.w3.org/Bugs/Public/show_bug.cgi?id=20944 https://www.w3.org/Bugs/Public/show_bug.cgi?id=20944 http://arstechnica.com/business/2012/02/unethical-html-video-copy-protection-proposal-criticized-by-standards-stakeholders/ http://arstechnica.com/business/2012/02/unethical-html-video...