In the nearly five years since we launched Content ID , it has helped everyone from large media companies to up-and-coming creators manage their content when it appears on YouTube. More than 3,000 content owners have supplied more than 500,000 hours of reference files to the system. Content ID hasn’t stood still over the last five years. We’ve been rolling out regular updates and we want to highlight three particular efforts that we think improve Content ID for everyone.Users have always had the ability to dispute Content ID claims on their videos if they believe those claims are invalid. Prior to today, if a content owner rejected that dispute, the user was left with no recourse for certain types of Content ID claims (e.g., monetize claims). Based upon feedback from our community, today we’re introducing an appeals process that gives eligible users a new choice when dealing with a rejected dispute. When the user files an appeal, a content owner has two options: release the claim or file a formal DMCA notification.Content owners have uploaded more than ten million reference files to the Content ID system. At that scale, mistakes can and do happen. To address this, we’ve improved the algorithms that identify potentially invalid claims. We stop these claims from automatically affecting user videos and place them in a queue to be manually reviewed by the content owner. This process prevents disputes that arise when content not owned by a partner inadvertently turns up in a reference file.Smarter claim detection minimizes unintentional mistakes. Of course, we take action in rare cases of intentional misuse, up to and including terminating Content ID access.At the heart of Content ID is the matching technology that identifies partners’ content among all the videos on YouTube. Earlier this year we introduced a significant improvement to how the matching happens. We continue to work on ways to make the matching more precise through better algorithms and a more comprehensive reference library.There is still a lot of work ahead of us, but we believe that these are significant steps forward in our efforts to keep YouTube a vibrant place where the rights of both content owners and users are protected and everyone can control their original content and make money from it - money which can be put towards the production of more great content.For now, keep on watching, upload a video or two and please, please keep the feedback coming.