# Issue with cover art writing to mp3 files but not to flac files in 3.20

**URL:** https://community.mp3tag.de/t/issue-with-cover-art-writing-to-mp3-files-but-not-to-flac-files-in-3-20/68438
**Category:** Support
**Tags:** player
**Created:** [May 7, 2025, 6:58pm UTC](https://community.mp3tag.de/t/issue-with-cover-art-writing-to-mp3-files-but-not-to-flac-files-in-3-20/68438 "2025-05-07T18:58:45Z")
**Posts on this page:** 1
**Showing post:** 3

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### Author: ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)
#### Post date: [May 7, 2025, 7:07pm UTC](https://community.mp3tag.de/t/issue-with-cover-art-writing-to-mp3-files-but-not-to-flac-files-in-3-20/68438/3 "2025-05-07T19:07:22Z")

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How big are your cover art pictures?

There is a limit of 16 MB for embedded cover pictures in FLAC files.

See - for example - here:

> [@Unable to remove/write tags for FLAC files with 16 MB+ embedded cover](https://community.mp3tag.de/t/unable-to-remove-write-tags-for-flac-files-with-16-mb-embedded-cover/67170/5):
>
> FLAC has a limitation of ~16MB because the length field of the metadata block can only hold numbers up to 24bit. The workaround via metaflac linked to above might work, but I can't verify myself. If you like, you can send me one of the offending files. Also, how did you end up with covers exceeding the possible size? How can I create those files myself?

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_[View the full topic](https://community.mp3tag.de/t/issue-with-cover-art-writing-to-mp3-files-but-not-to-flac-files-in-3-20/68438)._