The Digital Millennium Copyright Act Is Even Worse Than You Think

At least, that’s the case with physical and analog media. But publishers, video programmers, and other copyright owners lock down digital content with digital rights management technology designed to limit users’ ability to access, copy, and adapt copyrighted works to specific circumstances. And copyright owners frequently fail to account for the need to adapt DRM-encumbered works to make them accessible to people with disabilities. For example, e-books often include DRM technology that prevents people who are blind or visually impaired from running e-books that they have lawfully purchased through a text-to-speech converter that reads the books aloud. Similarly, Internet-distributed video and DVD and Blu-ray discs include DRM features that prevent researchers from developing advanced closed captioning and video description technologies that make movies and television shows accessible. (For example, some Internet-delivered videos don't include closed captions at all, and subtitles on DVD and Blu-ray discs can be incomplete, riddled with errors, or so badly formatted that they can't be read.)

Source : http://www.slate.com/articles/technology/future_tense/2013/03/dmca_copyright_reform_u_s_law_makes_digital_media_inaccessible.html

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