# Tagging Flac Files and Field-Name Letter Casing

**URL:** https://community.mp3tag.de/t/tagging-flac-files-and-field-name-letter-casing/58888
**Category:** Support
**Created:** [October 25, 2022, 11:47am UTC](https://community.mp3tag.de/t/tagging-flac-files-and-field-name-letter-casing/58888 "2022-10-25T11:47:18Z")
**Posts on this page:** 1
**Showing post:** 2

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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: [October 25, 2022, 12:16pm UTC](https://community.mp3tag.de/t/tagging-flac-files-and-field-name-letter-casing/58888/2 "2022-10-25T12:16:41Z")

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There are several threads about this questions, just have a look at the search in the upper right corner.

One of them includes an answer from the developer from Mp3tag:

> [@Why some of my custom tags stored in UPPERCASE and others in lowercase?](https://community.mp3tag.de/t/why-some-of-my-custom-tags-stored-in-uppercase-and-others-in-lowercase/56087/8):
>
> There is noting wrong with direct editing in the file list, i.e., delayed double click to enter editing mode. It's perfectly fine to do it this way slight_smile What I meant was that the way you've set up the column for the custom field via View → Columns... determines the way the field name is written to the file. If you use %MyField% as Field in the configuration, it would use MyField when writing the custom tag to the file. If you use %MYFIELD%, MYFIELD is written. This is purely cosmetic…

and

> [@\[X\] FLAC Tagging](https://community.mp3tag.de/t/x-flac-tagging/4468/2):
>
> Uhm ... no. If you're unhappy with your tags' case settings, you can run an action on your tags field names: Action type: Case conversion Field: \_FIELDNAME Case conversion: UPPER case

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_[View the full topic](https://community.mp3tag.de/t/tagging-flac-files-and-field-name-letter-casing/58888)._