In general, this disclosure concerns media streaming. Among other things, the present disclosure presents a first media item for streaming from a computer server system to a media device. The first media item has an audio format. Furthermore, the first media item comprises a number of media segments, wherein each one of the number of media segments is identifiable by a media segment identifier. Still further, one or several of the number of media segments is/are associated with a respective second media item corresponding to a respective media segment identifier. The second media item(s) typically has/have a media format other than audio.