Media fingerprinting for content determination and retrieval

Audio fingerprinting and other media matching technologies can be used to identify broadcast media, such as television shows and radio broadcasts. A user device can record image, audio, and/or video information and upload information to a matching service that is able to use matching technology to identify the media and provide supplemental content or information to the user. The user might receive information identifying a product in an advertisement, identifying an actor on screen in a movie at a particular time, or other such information. In some embodiments, the user can receive access to a digital copy of the captured media, such as the ability to download a copy of a program in which a user expressed interest. Since a user might capture media information after the point of interest, a device can buffer a window of recently captured media in order to attempt to identify the intended media.