# How MediaPackage works
<a name="what-is-flow"></a>

AWS Elemental MediaPackage (MediaPackage) uses just-in-time format conversion to deliver over-the-top (OTT) video from a single source to a wide variety of playback devices or content delivery networks (CDNs).

The following sections describe how MediaPackage works.

**Topics**
+ [Live content processing](what-is-flow-live.md)
+ [VOD Content Processing](what-is-flow-vod.md)
+ [Live and VOD manifest reference](what-is-manifest.md)