# AAC tagging corrupts the music
**URL:** https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597
**Category:** Support
**Created:** [June 22, 2021, 3:45pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597 "2021-06-22T15:45:07Z")
**Posts on this page:** 11
**Page:** 1
### Author:  [@Unn](https://community.mp3tag.de/u/Unn)
#### Post date: [June 22, 2021, 3:45pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/1 "2021-06-22T15:45:07Z")
After putting some tags into the .aac files, I get the error 0xc00d36c4 on Groove music.
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [June 22, 2021, 6:08pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/2 "2021-06-22T18:08:38Z")
see here:
> [@AAC files don't play in Groove after tagging](https://community.mp3tag.de/t/aac-files-dont-play-in-groove-after-tagging/44648):
>
> 0xc00d36c4 groove player windows 10. I'm using the version 2.93. I do the tags for my acc files and after updating them mp3tag makes something to corrupt the files. I know this because after deleting the tags with mp3tags my audio files again play well (without tags). Conclution: the problem has to do only with mp3tag.
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### Author:  [@Unn](https://community.mp3tag.de/u/Unn)
#### Post date: [June 22, 2021, 6:27pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/3 "2021-06-22T18:27:16Z")
However, the program (yamb) they state are not available anymore
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [June 22, 2021, 6:32pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/4 "2021-06-22T18:32:01Z")
Be that as it may. The real approach would be not to use the more or less untaggable raw aac format but to use a container format like mp4.
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### Author:  [@Unn](https://community.mp3tag.de/u/Unn)
#### Post date: [June 22, 2021, 6:35pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/5 "2021-06-22T18:35:04Z")
How would you do that?
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [June 22, 2021, 6:39pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/6 "2021-06-22T18:39:18Z")
Find a suitable file format converter and save the file as mp4 file.
Perhaps xmediarecode is something that suits your needs.
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### Author:  [@Unn](https://community.mp3tag.de/u/Unn)
#### Post date: [June 22, 2021, 6:40pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/7 "2021-06-22T18:40:08Z")
I see
thank you very much 🙂
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### Author:  [@phw](https://community.mp3tag.de/u/phw)
#### Post date: [June 22, 2021, 10:33pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/8 "2021-06-22T22:33:43Z")
Just for some background: a .AAC file is a very simple file format. It contains basically only the actual AAC data with a simple header. It has no support for tags.
To have tags you can tuck just APE (or ID3) tags to the end of the file. Some software supports reading that. But if a software doesn't support this one of two things might happen:
1. The software might show a wrong duration, because it considers the tag data part of the audio. Once it reaches the tag data it will fail decoding. Depending on software that means it will just skip to the next file or actually show an error.
2. The software just fails to read and/or decode the file completely.
As said above putting this AAC in an MP4 file is usually the best solution.
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### Author:  [@sveakul](https://community.mp3tag.de/u/sveakul)
#### Post date: [July 5, 2021, 6:30pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/9 "2021-07-05T18:30:55Z")
A quick way to hande this is to losslessly wrap your AAC files into the M4A wrapper with ffmpeg.exe, which can then be tagged easily. Executing this command line inside the folder containing your AAC's will wrap all of them to M4A, keeping the original files (which can be deleted afterwards if you choose); change the path of ffmpeg.exe to match yours:
```auto
FOR %F IN (*.aac) DO C:\ffmpeg\ffmpeg.exe -i "%F" -codec copy "%~nF.m4a"
```
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### Author:  [@phw](https://community.mp3tag.de/u/phw)
#### Post date: [July 6, 2021, 12:37pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/10 "2021-07-06T12:37:50Z")
Just to complement the above, as it might not be obvious to everyone: The above command changes nothing with the actual audio data. The AAC audio is copied as is to the new M4A file, so there is no re-encoding or otherwise any loss in quality. It's hence also a pretty fast action.
Given that M4A files are much wider supported then pure AAC and are also able to hold tags this is really the best option to choose IMHO 🙂
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [August 5, 2021, 12:37pm UTC](https://community.mp3tag.de/t/aac-tagging-corrupts-the-music/53597/11 "2021-08-05T12:37:59Z")
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