# MP4: Explorer File Properties Fields: "Subtitle," "Tags," "Directors," "Producers," "Writers," "Publisher," "Content provider," "Encoded by," "Author URL," "Promotion URL," and "Parental rating."
**URL:** https://community.mp3tag.de/t/mp4-explorer-file-properties-fields-subtitle-tags-directors-producers-writers-publisher-content-provider-encoded-by-author-url-promotion-url-and-parental-rating/54774
**Category:** Support
**Created:** [October 16, 2021, 9:46pm UTC](https://community.mp3tag.de/t/mp4-explorer-file-properties-fields-subtitle-tags-directors-producers-writers-publisher-content-provider-encoded-by-author-url-promotion-url-and-parental-rating/54774 "2021-10-16T21:46:46Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@wneclass2018](https://community.mp3tag.de/u/wneclass2018)
#### Post date: [October 16, 2021, 9:46pm UTC](https://community.mp3tag.de/t/mp4-explorer-file-properties-fields-subtitle-tags-directors-producers-writers-publisher-content-provider-encoded-by-author-url-promotion-url-and-parental-rating/54774/1 "2021-10-16T21:46:46Z")
I was wondering if someone can help me regarding creating a field that directly reflects Windows Explorer File Properties for MP4 files. When I use MetaX on an MP4 file, any entry added into the " **Director** ," " **Producers** ," " **Screenwriters** ," " **Rating** ," " **Subtitle**" and " **Stars**" fields is directly pushed into the Windows Explorer File properties. I want to apply that same settings on MP3Tag for MP4 files, if possible. I also want to fields for "Publisher," "Content provider," "Encoded by," "Author URL," and "Promotion URL."
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### Author:  [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)
#### Post date: [October 17, 2021, 7:04am UTC](https://community.mp3tag.de/t/mp4-explorer-file-properties-fields-subtitle-tags-directors-producers-writers-publisher-content-provider-encoded-by-author-url-promotion-url-and-parental-rating/54774/2 "2021-10-17T07:04:20Z")
Have a look at the help and the list of supported fields:
> **[Tag Field Mappings – Mp3tag Documentation](https://docs.mp3tag.de/mapping/)**
>
> Overview of all available tag fields, their names in Mp3tag, and how they are mapped to the internal structures of the different tag formats. Mp3tag is the universal Tag Editor.
The easiest way would be to fill a filed in quiestion in a sample file with the Explorer and then look at the same file with MP3tag probably in the extended tags dialogue.
If you don't see anything in the extended tags dialogue, it could be that this comes from the same phenomenon as getting the rating:
> [@No support for reading windows explorer ratings in m4a / mp4?](https://community.mp3tag.de/t/no-support-for-reading-windows-explorer-ratings-in-m4a-mp4/15671):
>
> ok, here's a weird one: mp3tag will store ratings as 0-100 I believe (the raw data, translates to 5 stars) in m4a as a %rate% atom, which is what twonky and MM and winamp use and np so far. however windows explorer in win7 will allow you to rate a m4a as well! this rating is NOT in the %rate% atom! so what atom is windows storing the rating to? how do u get mp3tag to read it? I would guess WMP does the same thing, but I haven't tested it to see. I saw nothing about any of this here: [ht…](https://docs.mp3tag.de/mapping)
... which would mean that it is not possible to get this kind of data exchanged between the Windows explorer and other programs
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### Author:  [@wneclass2018](https://community.mp3tag.de/u/wneclass2018)
#### Post date: [October 18, 2021, 8:38pm UTC](https://community.mp3tag.de/t/mp4-explorer-file-properties-fields-subtitle-tags-directors-producers-writers-publisher-content-provider-encoded-by-author-url-promotion-url-and-parental-rating/54774/3 "2021-10-18T20:38:08Z")
Sorry for the late response. I already went through [Tag Field Mappings – Mp3tag Documentation](https://docs.mp3tag.de/mapping), prior to creating the post? I figured it out for MKV files, but MP4 is the one that I am having an issue with. I am sure that there is a mechanism/way for my request to become a reality because it can be done via MetaX as shown via my attachments, but I prefer Mp3Tag due to its custom fields. The " **Red-boxed**" areas on the images correspond to what Mp3Tag is unable to fulfil, compared to MetaX, even though I prefer Mp3Tag over MetaX.
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### Author:  [@MotleyG](https://community.mp3tag.de/u/MotleyG)
#### Post date: [October 19, 2021, 4:32am UTC](https://community.mp3tag.de/t/mp4-explorer-file-properties-fields-subtitle-tags-directors-producers-writers-publisher-content-provider-encoded-by-author-url-promotion-url-and-parental-rating/54774/4 "2021-10-19T04:32:39Z")
This is all rolled up into a XML file that is stored in the ITUNMOV tag for mp4 videos. I’m not sure how this is managed in MetaX but it would require a lot of remapping for mp3tag.
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### Author:  [@wneclass2018](https://community.mp3tag.de/u/wneclass2018)
#### Post date: [October 24, 2021, 8:15pm UTC](https://community.mp3tag.de/t/mp4-explorer-file-properties-fields-subtitle-tags-directors-producers-writers-publisher-content-provider-encoded-by-author-url-promotion-url-and-parental-rating/54774/5 "2021-10-24T20:15:45Z")
I am already aware of ITUNMOVI tag for mp4 videos. Nonetheless, is there still a way to grant my request via these links: [Metadata Properties for Media Files](https://docs.microsoft.com/en-us/windows/win32/medfound/metadata-properties-for-media-files) and [Attribute list](https://docs.microsoft.com/en-us/windows/win32/wmformat/attribute-list)?
Any thoughts or recommendations will be appreciated. Thank you
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:29pm UTC](https://community.mp3tag.de/t/mp4-explorer-file-properties-fields-subtitle-tags-directors-producers-writers-publisher-content-provider-encoded-by-author-url-promotion-url-and-parental-rating/54774/6 "2026-02-09T12:29:28Z")