Editing M3U (section)

==Internet media types==

The only [[Internet media type]] registered for M3U and M3U8 is <code>application/vnd.apple.mpegurl</code>, registered in 2009 and only referring to the playlist format as used in HLS applications.<ref>{{cite web|url=https://www.iana.org/assignments/media-types/media-types.xhtml#audio|title=Media Types|website=www.iana.org}}</ref><ref>{{cite web|url=https://www.iana.org/assignments/media-types/application/vnd.apple.mpegurl |title=Data |publisher=iana |access-date=2019-10-21}}</ref>

The current proposal for the HLS playlist format acknowledges two media types which it treats as equivalent: <code>application/vnd.apple.mpegurl</code> and <code>audio/mpegurl</code>.<ref name="HLSdraft"/> Likewise, these are the two types recommended for HLS use by Microsoft.<ref name="Win10"/>

For non-HLS applications, no media types were standardized or registered with the [[Internet Assigned Numbers Authority|IANA]], but a number of media types are nonetheless associated with the historical and ongoing use of the M3U and M3U8 formats for general playlists:
* <code>application/mpegurl</code>
* <code>application/x-mpegurl</code>
* <code>audio/mpegurl</code>
* <code>audio/x-mpegurl</code><ref name="WinPlay3v20">{{cite web |url=http://www.iis.fhg.de/audio |archive-url=https://web.archive.org/web/19970606171426/http://www.iis.fhg.de/departs/amm/layer3/winplay3/ |url-status=dead |archive-date=1997-06-06 |title=WinPlay3 - Windows real-time ISO/MPEG Audio Layer 3 Player |date=1996-10-30 |author=Fraunhofer Gesellschaft, Fraunhofer Institut für Integrierte Schaltungen-A |access-date=2018-01-21 }}</ref><ref name="Gnomie">{{cite web |url=https://lockergnome.com/mp3/article14.html |first=Matt |last=Gruett |title=M3U FILES AND STREAMING |archive-url=https://web.archive.org/web/20010426110118/https://lockergnome.com/mp3/article14.html |archive-date=2001-04-26 |url-status=dead |work=LockerGnome}}</ref>

These types, plus <code>application/vnd.apple.mpegurl</code> and <code>application/vnd.apple.mpegurl.audio</code>, are supported for HLS applications by (for example)  Microsoft's [[Windows 10]]<ref name="Win10">{{cite web|url=https://blogs.msdn.microsoft.com/ie/2015/01/29/simplified-adaptive-video-streaming-announcing-support-for-hls-and-dash-in-windows-10/|title=Simplified Adaptive Video Streaming: Announcing support for HLS and DASH in Windows 10 – IEBlog|website=blogs.msdn.microsoft.com}}</ref> and [[Internet Explorer]] 9,<ref>{{cite web|url=https://developer.mozilla.org/en-US/docs/Web/API/HTMLVideoElement|title=HTMLVideoElement|website=MDN Web Docs|date=10 April 2025 }}</ref> and LG's [[WebOS]].<ref>{{Cite web |url=http://developer.lge.com/webOSTV/api/supported-standard-web-api/html5-standard/audio-video/ |title=::: LG Developer &#124; Audio & Video ::: |access-date=2015-12-12 |archive-url=https://web.archive.org/web/20151222151959/http://developer.lge.com/webOSTV/api/supported-standard-web-api/html5-standard/audio-video/ |archive-date=2015-12-22 |url-status=dead }}</ref>