# How to find/enter missing metatag values

**URL:** https://community.mp3tag.de/t/how-to-find-enter-missing-metatag-values/60669
**Category:** Support
**Created:** [April 10, 2023, 8:18pm UTC](https://community.mp3tag.de/t/how-to-find-enter-missing-metatag-values/60669 "2023-04-10T20:18:09Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [April 10, 2023, 8:20pm UTC](https://community.mp3tag.de/t/how-to-find-enter-missing-metatag-values/60669/2 "2023-04-10T20:20:10Z")

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> [@dec](#):
>
> are missing Codec data

These files are usually corrupt or have an unsupported format.  
For more information about filters, see (really!)

> **[Filter and Search – Mp3tag Documentation](https://docs.mp3tag.de/filter/)**
>
> Documentation on Filter and Search and keywords to form complex filter expressions. Mp3tag is the universal Tag Editor.

Here are suggestions on tools to check files for problems:

> [@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 …

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