# Some MP4 files are not listed when starting from context menu

**URL:** https://community.mp3tag.de/t/some-mp4-files-are-not-listed-when-starting-from-context-menu/60562
**Category:** Support
**Created:** [March 31, 2023, 7:27pm UTC](https://community.mp3tag.de/t/some-mp4-files-are-not-listed-when-starting-from-context-menu/60562 "2023-03-31T19:27:27Z")
**Posts on this page:** 1
**Showing post:** 9

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### Author: ![MotleyG](https://community.mp3tag.de/user_avatar/community.mp3tag.de/motleyg/32/440_2.png) [@MotleyG](https://community.mp3tag.de/u/MotleyG)
#### Post date: [March 31, 2023, 8:13pm UTC](https://community.mp3tag.de/t/some-mp4-files-are-not-listed-when-starting-from-context-menu/60562/9 "2023-03-31T20:13:05Z")

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MP3TAG will typically at least list files, even if they have corrupt headers. But perhaps there is something else wrong. Perhaps a check of the file integrity is needed?

> [@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 …

Otherwise perhaps you can share a file here to be looked at?

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_[View the full topic](https://community.mp3tag.de/t/some-mp4-files-are-not-listed-when-starting-from-context-menu/60562)._