# MP4-Felder (Atom/Box) in anderer Software

**URL:** https://community.mp3tag.de/t/mp4-felder-atom-box-in-anderer-software/48614
**Category:** Vorschläge
**Created:** [April 17, 2020, 3:09pm UTC](https://community.mp3tag.de/t/mp4-felder-atom-box-in-anderer-software/48614 "2020-04-17T15:09:40Z")
**Posts on this page:** 1
**Showing post:** 12

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### Author: ![Crissov](https://community.mp3tag.de/user_avatar/community.mp3tag.de/crissov/32/6619_2.png) [@Crissov](https://community.mp3tag.de/u/Crissov)
#### Post date: [March 17, 2021, 8:31pm UTC](https://community.mp3tag.de/t/mp4-felder-atom-box-in-anderer-software/48614/12 "2021-03-17T20:31:41Z")

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Das kennt Mp3tag schon, aber mit anderem Mapping und entsprechend anderer Bedeutung:

| Mp3tag | ID3v2 | MP4 |
| --- | --- | --- |
| `CONTENTGROUP` | `TIT1` | `©grp` |

Das ID3v2-Frame `GRP1` aus der [Mp3tag-Doku](https://docs.mp3tag.de/mapping) ist nicht Teil des [Standards](https://id3.org/id3v2.4.0-frames), sondern wurde von Apple erfunden:

> [@Support for new iTunes Grouping id3 frame "GRP1"?](https://community.mp3tag.de/t/support-for-new-itunes-grouping-id3-frame-grp1/18523):
>
> With this week's iTunes' release of 12.5.4.42, iTunes is now writing "Grouping" values from its library out to a new ID3 frame "GRP1". Support of this new "iTunes Grouping" frame in Mp3tag would be a very useful alternative to the problematic "Work" / TIT1 frame to store mood & style keywords.

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_[View the full topic](https://community.mp3tag.de/t/mp4-felder-atom-box-in-anderer-software/48614)._