# Mp4: No longer any tag changes supported
**URL:** https://community.mp3tag.de/t/mp4-no-longer-any-tag-changes-supported/56172
**Category:** Support
**Created:** [February 2, 2022, 10:24am UTC](https://community.mp3tag.de/t/mp4-no-longer-any-tag-changes-supported/56172 "2022-02-02T10:24:31Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@snvandoorn](https://community.mp3tag.de/u/snvandoorn)
#### Post date: [February 2, 2022, 10:24am UTC](https://community.mp3tag.de/t/mp4-no-longer-any-tag-changes-supported/56172/1 "2022-02-02T10:24:31Z")
As of today, i could no longer edit any tags for mp4 files, downloaded with the latest Audials22. mp3 is ok.
I installed also the latest mp3tag - still no change. When saving any tag changes, the message comes up that the file could not be written. Subsequently there is a tmp file in the folder for each file for which write was tried.
I only have Windows defender active.
Running M3Tag [2022-01-21] REL: VERSION 3.12 (for Windows 11/10/8.1/8/7)
| | |
| --- | --- |
| Prozessor | Intel(R) Core(TM) i5-7200U CPU @ 2.50GHz 2.70 GHz |
| Installierter RAM | 8,00 GB (7,87 GB verwendbar) |
| Geräte-ID | AED338AA-27E5-4B0E-BDF3-0310BEB4122F |
| Produkt-ID | 00325-80679-88480-AAOEM |
| Systemtyp | 64-Bit-Betriebssystem, x64-basierter Prozessor |
| Stift- und Toucheingabe | Für diese Anzeige ist keine Stift- oder Toucheingabe verfügbar. |
| Edition | Windows 10 Home |
| Version | 21H1 |
| Installiert am | 31.08.2020 |
| Betriebssystembuild | 19043.1466 |
| Leistung | Windows Feature Experience Pack 120.2212.3920.0 |
Mp3tagError.log:
```auto
================================================================================
Mp3tag v3.12 - 02.02.2022 - 11:22:27
--------------------------------------------------------------------------------
OS-Version: Windows 10 (build 19043), 64-bit
--------------------------------------------------------------------------------
Build: Jan 21 2022 11:44:15
--------------------------------------------------------------------------------
AppPath: 16.964.046.848 Bytes frei (C:\Program Files (x86)\Mp3tag\)
DataPath: 16.964.046.848 Bytes frei (C:\Users\svd\AppData\Roaming\Mp3tag\data\)
TempPath: 16.964.046.848 Bytes frei (C:\Users\svd\AppData\Local\Temp\Mp3tag v3.12\)
================================================================================
--------------------------------------------------------------------------------
MESSAGE
--------------------------------------------------------------------------------
File: y:\projects\_audio\smp4file.cpp
Line: 566
Message: write: invalid or incomplete data (D:\Videos\Audials\Audials Other Videos\Facts der Impfpflicht-Befürworter.mp4)
00007764 at 0:09.061903
--------------------------------------------------------------------------------
MESSAGE
--------------------------------------------------------------------------------
File: y:\projects\_audio\smp4file.cpp
Line: 566
Message: write: invalid or incomplete data (D:\Videos\Audials\Audials Other Videos\Facts der Impfpflicht-Befürworter.mp4)
00007764 at 0:26.735796
--------------------------------------------------------------------------------
MESSAGE
--------------------------------------------------------------------------------
File: y:\projects\_audio\smp4file.cpp
Line: 566
Message: write: invalid or incomplete data (D:\Videos\Audials\Audials Other Videos\Facts der Impfpflicht-Befürworter.mp4)
00007764 at 0:27.787609
```
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [February 2, 2022, 10:34am UTC](https://community.mp3tag.de/t/mp4-no-longer-any-tag-changes-supported/56172/2 "2022-02-02T10:34:58Z")
Have you checked the files for consistency?
See suggestions for tools here:
> [@How to check files for errors?](https://community.mp3tag.de/t/how-to-check-files-for-errors/44633):
>
> It’s required and often helps to reduce support cycles to check files for errors before filing a bug report. Symptoms of erroneous files are often missing or wrong bitrate or length audible blips or skips tags seem to be sticky and cannot be removed There are some really good tools to check the files for errors, namely MP3 Diags — identifies many different issues in MP3 files Website: [http://mp3diags.sourceforge.net](http://mp3diags.sourceforge.net) Download: [MP3 Diags - Getting MP3 Diags](http://mp3diags.sourceforge.net/010_getting_the_program.html#binWindows) If the font size in MP3 Diags is …
You probably need Foobar2000 to check mp4 files.
Did you convert the files with some kind of online service?
Then it is fairly likely that you got files with an invalid format back.
---
### Author:  [@Dynamix](https://community.mp3tag.de/u/Dynamix)
#### Post date: [February 14, 2022, 12:35pm UTC](https://community.mp3tag.de/t/mp4-no-longer-any-tag-changes-supported/56172/3 "2022-02-14T12:35:39Z")
Any solution here? I´ve got the same issue...
Checked all files and they seem to be ok. While MP3 tags can be written, MP4 tags can not written any more.
---
### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [February 14, 2022, 12:39pm UTC](https://community.mp3tag.de/t/mp4-no-longer-any-tag-changes-supported/56172/4 "2022-02-14T12:39:36Z")
As you can see, the OP did not answer.
What have you done in to narrow down the problem, esp. following the
> [@Hints for asking Support Requests](https://community.mp3tag.de/t/hints-for-asking-support-requests/56190):
>
> If you need support using Mp3tag, you can help the community members that are about to support you in finding a solution or workaround to your problem, by following these simple guidelines. Be descriptive, also in what you’ve already tried Please give a short explanation what’s not working as expected or what you’re trying to achieve. It’s best to know any details about the problem at hand and especially, what steps you’ve already tried to solve it by yourself. Helpful information also includ…
---
### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:29pm UTC](https://community.mp3tag.de/t/mp4-no-longer-any-tag-changes-supported/56172/5 "2026-02-09T12:29:39Z")