Lawmeme evaluates the Top Ten Benefits of Microsoft and HP's Christmastime "Entertainment PC," which is chock full o' Hollywood-centric "features" that undermine Fair Use.
4. Enjoy the convenience of a single remote control to access your entertainment
This is convenient, until you realize that this means Microsoft controls the ways you can access your entertainment. Prefer to access your entertainment in a way that Microsoft (or Hollywood) doesn't like? Too bad. Access has come to take on some very strange meanings. According to the DMCA, you are not permitted to circumvent access control devices. Hollywood defines "access" as "using." If you watch a DVD, you are "accessing" the content on the DVD. Thus, if you watch a DVD in a way that Hollywood has not explicitly permitted, you are in violation of the DMCA.
(Thanks, Ernest!)