# New fields added not showing up at all in Windows Media Player but yet some are in other programs!

**URL:** https://community.mp3tag.de/t/new-fields-added-not-showing-up-at-all-in-windows-media-player-but-yet-some-are-in-other-programs/69909
**Category:** Support
**Created:** [October 1, 2025, 12:30am UTC](https://community.mp3tag.de/t/new-fields-added-not-showing-up-at-all-in-windows-media-player-but-yet-some-are-in-other-programs/69909 "2025-10-01T00:30:48Z")
**Posts on this page:** 1
**Showing post:** 5

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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: [October 1, 2025, 11:42am UTC](https://community.mp3tag.de/t/new-fields-added-not-showing-up-at-all-in-windows-media-player-but-yet-some-are-in-other-programs/69909/5 "2025-10-01T11:42:50Z")

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> [@athar](#):
>
> displaying but IRSC and UPC fields are nowhere to be found!

Please show us how you defined the tag panel field or the file list column

> [@Adding ISRC extended Tag &Column](https://community.mp3tag.de/t/adding-isrc-extended-tag-column/18371):
>
> I have added an ISRC code using "Extended Tag". How do I get the Colums on the left to display the ISRC ? I have tried"VIEW COLUMNS & NEW but don't know what is required in " NAME, VALUE,FILED, SORT" boxes. I need to be sure the ISRC is in the correct place so that it will be read when I submit my MP3 files. I don't find this info in the help.

And you would have to find out what the target program supports.  
A look at the documentation may reveal which standard fields there are.

> **[Tag Field Mappings – Mp3tag Documentation](https://docs.mp3tag.de/mapping/#isrc)**
>
> 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.

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