Playback is a term used to describe media files that are accessed by a user after their initial creation. An example of playback is an audio or video file that is stored on the computer and can be opened at any time.
Playback may also describe content that is uploaded and stored on the Internet and streamed to a computer at a later time. Good examples are a video on YouTube or a song downloaded from Spotify. Playback of content differs from live-streamed content, which is consumed in real-time by an audience over the Internet.