Microsoft PlayReady is available as an option. DRM requires Silverlight client or Native App to playback. IE11 now has built-in support to play DRM. VIDIZMO has planned releases to support the browser’s native DRM support when it is available in HTML5 specification. 

VIDIZMO provides DRM capabilities. The current DRM capabilities of VIDIZMO can be found here: Understanding Digital Rights Management (DRM) in VIDIZMO.