Media type typically expressed using a MIME format (see <a href="http://www.iana.org/assignments/media-types/media-types.xhtml">IANA site</a> and <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types">MDN reference</a>) e.g. application/zip for a SoftwareApplication binary, audio/mpeg for .mp3 etc.).<br/><br/> In cases where a <a class="localLink" href="http://schema.org/CreativeWork">CreativeWork</a> has several media type representations, <a class="localLink" href="http://schema.org/encoding">encoding</a> can be used to indicate each <a class="localLink" href="http://schema.org/MediaObject">MediaObject</a> alongside particular <a class="localLink" href="http://schema.org/encodingFormat">encodingFormat</a> information.<br/><br/> Unregistered or niche encoding and file formats can be indicated instead via the most appropriate URL, e.g. defining Web page or a Wikipedia/Wikidata entry.