# Cover art for an AAC file?

**URL:** https://community.mp3tag.de/t/cover-art-for-an-aac-file/18634
**Category:** Support
**Created:** [January 25, 2017, 5:53pm UTC](https://community.mp3tag.de/t/cover-art-for-an-aac-file/18634 "2017-01-25T17:53:45Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![poster](https://community.mp3tag.de/user_avatar/community.mp3tag.de/poster/32/4881_2.png) [@poster](https://community.mp3tag.de/u/poster)
#### Post date: [January 26, 2017, 6:16am UTC](https://community.mp3tag.de/t/cover-art-for-an-aac-file/18634/5 "2017-01-26T06:16:01Z")

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> [@ohrenkino](#):
>
> The error message indicates that another program tries to access the file.

Not necessarily.  
MP3Tag gives this error message also if it just is not able to write tags to a file.  
i.e.  
Marked cover files  
or problematic wave-files.  
[.wav cannot be opened for writing replicable bug](https://community.mp3tag.de/t/18630/2)

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