# Force Optimised Version to transcode to mp4

**URL:** <https://forums.plex.tv/t/force-optimised-version-to-transcode-to-mp4/938632>\
**Category:** Plex Pass Betas\
**Tags:** server-linux, chromecast\
**Created:** [May 8, 2026, 3:14am UTC](https://forums.plex.tv/t/force-optimised-version-to-transcode-to-mp4/938632 "2026-05-08T03:14:40Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![imrehg](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/imrehg/32/348118_2.png) [@imrehg](https://forums.plex.tv/u/imrehg)\
**Post date:** [May 8, 2026, 3:14am UTC](https://forums.plex.tv/t/force-optimised-version-to-transcode-to-mp4/938632/1 "2026-05-08T03:14:41Z")

</div>

Server Version 1.43.1.10611

Web Plahyer Version 4.159.0

I have a Chromecast 3rd Gen, that can only supports playing H264 videos ([see the docs](https://developers.google.com/cast/docs/media)). When I try to stream H265/HEVC videos to it, the player nautrally tries to transcode, but it’s too slow for the playback to actually work..

On the other hand, if I do Optimised Versions, so far no matter what option I tried (Optimised for TV, custom one with Universal TV, etc…), the result seems to be that Plex Server just copies the H265/HEVC stream into it, rather than transcode.

Is there any setting that would force an H264 conversion? It would be useful if I didn’t have to do this common, simple conversion with 3rd party tools.

---

<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/plex/original/3X/2/a/2acb9765406f63293d357b4ec509ec39aa28f2ad.png) [@system](https://forums.plex.tv/u/system)\
**Post date:** [August 6, 2026, 3:14am UTC](https://forums.plex.tv/t/force-optimised-version-to-transcode-to-mp4/938632/2 "2026-08-06T03:14:50Z")

</div>

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.