Trying to Add Portability to Movie Files
Found on New York Times on Monday, 04 January 2010

Hollywood and its high-tech partners are deeply concerned that their customers will rebel against some of the limitations taking shape as video moves away from physical discs.
Under the proposed system, proof of digital purchases would be stored online in a so-called rights locker, and consumers would be permitted to play the movies they bought or rented on any DECE-compatible device.
CSS on the next level. But we all know about DeCSS and all the other solutions for files crippled by DRM.