# Can't write tags to .m4b files...

**URL:** https://community.mp3tag.de/t/cant-write-tags-to-m4b-files/18889
**Category:** Support
**Created:** [April 14, 2017, 7:32am UTC](https://community.mp3tag.de/t/cant-write-tags-to-m4b-files/18889 "2017-04-14T07:32:50Z")
**Posts on this page:** 1
**Showing post:** 1

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### Author: ![nannup](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/n/ba8739/32.png) [@nannup](https://community.mp3tag.de/u/nannup)
#### Post date: [April 14, 2017, 7:32am UTC](https://community.mp3tag.de/t/cant-write-tags-to-m4b-files/18889/1 "2017-04-14T07:32:50Z")

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Is there something I'm missing in 'Options' that needs to be checked or unchecked so this can happen? When I try to add a genre to an empty genre field, or add something to 'Album artist', I press the Save' icon, the 'saved tag dialogue box pops up, but here is no change to the empty genre field! No worries with other file formats, been using the programme for years, first time I've been stumped! Can anyone offer any help?

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