The document discusses the Digital Millennium Copyright Act (DMCA), focusing on its two main titles: anti-circumvention and online service provider (OSP) liability. It outlines the eligibility requirements for OSPs to receive safe harbor protections, as well as examples of key legal cases related to copyright and trademark disputes, including Tiffany v. eBay and Rosetta Stone v. Google. The document also highlights the challenges and responsibilities of copyright enforcement on the internet, emphasizing that the burden of active policing generally falls on copyright holders while recognizing OSPs’ role in cooperative compliance.