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					Originally Posted by anamardoll  Can someone please explain to me how digital watermarking isn't digital rights management (DRM)?    
If the answer is "it doesn't lock you into a device!" then I have a different, broader definition of DRM than that. (Perhaps I'm wrong.) | 
	
 It is DRM; it's generally called "social DRM". eReader have been using it for many years - you have to unlock an eReader book with the number of the credit card used to purchase it.