The Library of Congress's Copyright Office has released its latest round of DMCA exemptions and there is a big one in there for faculty who use DVD's in teaching.
First some background. This rulemaking process undertaken by the Library of Congress and the Copyright Office is designed to, "determine whether the prohibition on circumvention of technological measures that control access to copyrighted works [in the DMCA] is causing or is likely to cause adverse effects on the ability of users of any particular classes of copyrighted works to make noninfringing uses of those works." If so, then the Library of Congress can exempt that class of works from the Act's prohibition on circumvention.
Here are a couple of pieces that go into more detail, one from Inside Higher Ed and one from a Chronicle Blog (which is really good by the way, and will be followed put by a how-to guide to actually ripping DVD's.)
Bottomline: it always was legal to use clips of movies in the classroom to help teach particular concepts or content, but the DMCA stopped teachers getting clips of movies off DVD's. Now this exemption to the anti-circumvention provision of the DMCA means that that barrier to getting these clips has been removed.
IT departments and libraries will have to understand how to rip clips from DVD's so they can help faculty who want to make use of this exemption.