# MP4 files with chapters ignore all standard tags; create “ghost tags”

**URL:** https://community.mp3tag.de/t/mp4-files-with-chapters-ignore-all-standard-tags-create-ghost-tags/67243
**Category:** Fixed Bugs
**Tags:** bug-fixed
**Created:** [January 22, 2025, 8:59am UTC](https://community.mp3tag.de/t/mp4-files-with-chapters-ignore-all-standard-tags-create-ghost-tags/67243 "2025-01-22T08:59:50Z")
**Posts on this page:** 1
**Showing post:** 8

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### Author: ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [September 3, 2025, 2:21pm UTC](https://community.mp3tag.de/t/mp4-files-with-chapters-ignore-all-standard-tags-create-ghost-tags/67243/8 "2025-09-03T14:21:16Z")

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> [@obskyr](#):
>
> **Nero copies are created for every standard metadata tag that's set in that file,** meaning that if the standard tags are changed with another program, **Mp3tag cannot see the change, and the unchanged tags remain in the file as “ghost tags”.**

I've adjusted this with [Mp3tag v3.31b](https://community.mp3tag.de/t/455), so that in case a [Nero tag needs to be written](https://community.mp3tag.de/t/mp4-m4a-m4b-itunes-quicktime-and-nero-metadata/69341), it's now using a minimal version without duplicating other metadata.

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