# How can I prevent extra null characters in tags saved with Mp3tag?

**URL:** <https://community.mp3tag.de/t/how-can-i-prevent-extra-null-characters-in-tags-saved-with-mp3tag/60237>\
**Category:** Support\
**Created:** [March 1, 2023, 9:32am UTC](https://community.mp3tag.de/t/how-can-i-prevent-extra-null-characters-in-tags-saved-with-mp3tag/60237 "2023-03-01T09:32:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ZMYaro](https://community.mp3tag.de/user_avatar/community.mp3tag.de/zmyaro/32/13399_2.png) [@ZMYaro](https://community.mp3tag.de/u/ZMYaro)\
**Post date:** [March 1, 2023, 9:32am UTC](https://community.mp3tag.de/t/how-can-i-prevent-extra-null-characters-in-tags-saved-with-mp3tag/60237/1 "2023-03-01T09:32:04Z")

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There seems to be a weird difference between how Mp3tag encodes ID3 tags and how Windows does, where Mp3tag adds null characters between letters. I only discovered this because one program struggles to read the tags if I resave them with Mp3tag, and then can read them fine if I resave them with the basic Windows file property editor. Is there a way to prevent this happening with Mp3tag?

 ![image](https://community.mp3tag.de/uploads/default/original/2X/b/b1681a65e540685626f06e56d957795b53f19b65.png)

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**Author:** ![LyricsLover](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/l/c6cbf5/32.png) [@LyricsLover](https://community.mp3tag.de/u/LyricsLover)\
**Post date:** [March 1, 2023, 9:38am UTC](https://community.mp3tag.de/t/how-can-i-prevent-extra-null-characters-in-tags-saved-with-mp3tag/60237/2 "2023-03-01T09:38:20Z")

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You can choose and adjust the encoding in File -\> Options (Ctrl+O)-\> Tags -\> Mpeg in the "Write" section:

![image](https://community.mp3tag.de/uploads/default/original/2X/a/af1e5cff8d56f83eb76ac3ea656b1e467ea26c34.png)

You need to find out, what encoding your struggling software expects:

> [@ZMYaro](#):
>
> I only discovered this because one program struggles to read the tags

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**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\
**Post date:** [February 9, 2026, 12:30pm UTC](https://community.mp3tag.de/t/how-can-i-prevent-extra-null-characters-in-tags-saved-with-mp3tag/60237/3 "2026-02-09T12:30:03Z")

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