Codec H.265 support in MP4 container

Date of release: 2025-08-26T20:24:43

Article Author: Red Retti Release Notes

Article short description:

It has been detected lack of support of codec H.265 support in MP4 container which has been used for compression in recent videos.

The following web browsers does not support H.265 in MP4 container:
- Microsoft Edge
- Google Chrome
- Opera

Codec H.265 support in MP4 works only so far in Firefox

It is recommended for a videos to use WEBM container and VP9 codec as the most know compression effective and quality combination of container and codec.

Affected articles list in sources list.

Full article:

It has been detected lack of support of codec H.265 support in MP4 container which has been used for compression in recent videos.

The following web browsers does not support H.265 in MP4 container:
- Microsoft Edge
- Google Chrome
- Opera

Codec H.265 support in MP4 works only so far in Firefox

It is recommended for a videos to use WEBM container and VP9 codec as the most know compression effective and quality combination of container and codec.

Affected article list in sources list. Some of these will be re-uploaded.

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