# Support of the WEBM video file format
**URL:** https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641
**Category:** General Discussion
**Created:** [October 4, 2019, 5:45pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641 "2019-10-04T17:45:29Z")
**Posts on this page:** 8
**Page:** 2
### Author:  [@Zerow](https://community.mp3tag.de/u/Zerow)
#### Post date: [February 12, 2020, 6:40pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641/22 "2020-02-12T18:40:07Z")
> [@ohrenkino](#):
>
> [...]
> This does not really answer
>
> > [@ohrenkino](#):
> >
> > how do you open these files?
>
> [...]
I simply missed that question, sorry for that
All that time I have been using drag & drop from FreeCommander or a send-to shortcut in FreeCommander. I also tested just now drag & drop from Windows Explorer - still nothing. But when I use now the "Add directory..." icon within Mp3tag, the WEBM files finally get loaded to Mp3tag
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So. Does point into the direction of having something to do with what I ask about at the top of post [How to send and drag & drop files to an audio editor? -OR- Problems with running as (not) administrator on Windows 10 - #5 by Zerow](https://community.mp3tag.de/t/how-to-send-and-drag-drop-files-to-an-audio-editor-or-problems-with-running-as-not-administrator-on-windows-10/46386/5) above the **`[That would be a first solution]`** statement?
But both my Mp3tag and FreeCommander [and also explorer.exe] are shown to be running as `No` in the
**Task Manager \> Details \> Elevated**
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And now, that I can finally load WEBM files at least in one way, what I have noticed in regards to
> [@Zerow](#):
>
> [...]
> **B]** What is the point of pretending that Mp3tag does not handle video formats other than MKV?
> [...]
The WEBM files do not show to me theirs lengths- which is to be expected, as the supported video file format is MKV, right? But when those very same files are renamed be me into MKVs, they suddenly gain the ability to display length. [Although I cannot rename them without issues from within Mp3tag - the files must be tampered with in FreeCommander of Windows Explorer]
So once again: why al this pretending or "pretending" or whatever it might be called, that Mp3tag does not handle videos other than MKV?
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [February 12, 2020, 7:21pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641/23 "2020-02-12T19:21:09Z")
> [@Zerow](#):
>
> Mp3tag does not handle videos other than MKV
This is not true as MP3tag handles MP4 files perfectly.
It is not enough to rename files from webm to mkv - you have to transform them with a suitable program.
After that you can tag the files.
Please note that a number of video files do not accept tags: avi, mpeg are such video formats. To add tags in a sensible fashion you have to transform these file types into taggable format.
The other problem seems to be curable with the use of the "open folder" function from within MP3tag.
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### Author:  [@Zerow](https://community.mp3tag.de/u/Zerow)
#### Post date: [February 17, 2020, 12:25pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641/24 "2020-02-17T12:25:40Z")
> [@ohrenkino](#):
>
> > [@Zerow](#):
> >
> > Mp3tag does not handle videos other than MKV
>
> This is not true as MP3tag handles MP4 files perfectly.
By that statement I meant that Mp3tag pretends to not being able to handle specifically WEBM files
It is not just the tags but also the readability of lengths, as after renaming WEBMs to MKVs Mp3tag is suddenly able to display that data
> [@ohrenkino](#):
>
> [...]
> It is not enough to rename files from webm to mkv - you have to transform them with a suitable program.
But of course that renaming is not the same as converting. I myself did call this a a workaround and mentioned a fail safe when utilizing such approach
> [@ohrenkino](#):
>
> After that you can tag the files.
My tests have shown me that I can as well tag WEBM files renamed to MKV format
But that trick did not work for AVI
> [@ohrenkino](#):
>
> Please note that a number of video files do not accept tags: avi, mpeg are such video formats.
And that would explain why this workaround did not work for AVI
> [@ohrenkino](#):
>
> To add tags in a sensible fashion you have to transform these file types into taggable format.
"Transform" as in apparently either convert or rename
> [@ohrenkino](#):
>
> The other problem seems to be curable with the use of the "open folder" function from within MP3tag.
It is not a cure, if a given problem persists. This is merely a workaround; which to me personally is too inconvenient to be used
**This is a bug and your cure / workaround proves that claim**. Because for adding certain videos files [WEBMs] one method [`Add directory...`] works while two other methods [drag & drop and send-to] do not - but at the same time all of three methods work for different video files [MKVs]
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [February 17, 2020, 1:18pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641/25 "2020-02-17T13:18:27Z")
Just wanted to throw in an official statement, before this back-and-forth continues:
Mp3tag does not support WebM at the moment. Every file extension you're adding manually to the list of supported files makes the files with that extension to be recognized when listing files. However, this does not imply that metadata parsing is performed for such files.
My current understanding is, that WebM is basically a Matroska container (restricted to specific codecs for audio and video). So renaming a \*.webm file to \*.mkv works in this case.
I'll add official support for WebM with a future release. By then, it will be possible to handle WebM files with the \*.webm file extension like any other supported file type with Mp3tag.
And regarding other false statements from this topic: AVI [can have metadata](https://en.wikipedia.org/wiki/Audio_Video_Interleave#Metadata), it's simply not supported by Mp3tag.
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### Author:  [@Crissov](https://community.mp3tag.de/u/Crissov)
#### Post date: [February 17, 2020, 7:20pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641/26 "2020-02-17T19:20:29Z")
The WebM container format with `.webm` file extension is indeed a strict subset of the Matroska format, usually with `.mkv` extension. That means it is okay to test WebM like Matroska when _reading_, but special care must be taken when _writing_.
[https://www.webmproject.org/docs/container/](https://www.webmproject.org/docs/container/)
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [March 14, 2020, 3:59pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641/27 "2020-03-14T15:59:54Z")
I've added support for WebM with [Mp3tag v3.00c](https://community.mp3tag.de/t/455).
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### Author:  [@Zerow](https://community.mp3tag.de/u/Zerow)
#### Post date: [March 15, 2020, 5:34pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641/28 "2020-03-15T17:34:08Z")
> [@Florian](#):
>
> I've added support for WebM with [Mp3tag v3.00c](https://community.mp3tag.de/t/455).
Seems be working A-OK
Thank you
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [April 14, 2020, 5:34pm UTC](https://community.mp3tag.de/t/support-of-the-webm-video-file-format/46641/29 "2020-04-14T17:34:13Z")
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