Methods, apparatus, systems, and articles of manufacture to monitor media are disclosed. An example apparatus includes a media identifier to determine a first media identifier and a first timestamp based on media monitoring information obtained from a content publisher, the first media identifier and the first timestamp from the content publisher, the first media identifier to identify media accessed by a media device, map the first media identifier and the first timestamp to a second media identifier and a second timestamp in a look-up table, the second media identifier and the second timestamp generated by an AME media analyzer before the media device accessed the media, and credit access of the media to the media device based on the mapping, and a report generator to generate a media crediting report based on the crediting.