Methods, apparatus and articles of manufacture to monitor streaming media are disclosed. Example media monitoring methods disclosed herein include extracting metering data having a first format from media. In some disclosed examples, the media is to be provided to a media device via a transport stream, and the extracted metering data identifies at least one of the media or a source of the media. Disclosed example methods also include transcoding the extracted metering data to form transcoded metering data having a second format different from the first format. Disclosed example methods further include, prior to transmitting the transport stream to provide the media to the media device, transmitting the transcoded metering data to the media device for receipt by a meter executed by the media device.