EFF reports “…the Librarian of Congress granted all of the DMCA exemptions that EFF and our supporters requested. …The new exemptions mean that the following types of technological tinkering are explicitly lawful, at least for the next three years:

• Jailbreaking cell phones, tablets, and other portable computing devices to run third party software;
• Ripping DVDs and Blu-ray video that you own in order to create fair use remixes and analysis;
• Preserving video games and running multiplayer servers after publishers have abandoned them;
• Security research and modification and repairs on car.”