# Empty tag-field in "FLAC / Vorbis Comment" tag?
**URL:** https://community.mp3tag.de/t/empty-tag-field-in-flac-vorbis-comment-tag/15332
**Category:** Off-Topic
**Created:** [December 27, 2013, 5:40pm UTC](https://community.mp3tag.de/t/empty-tag-field-in-flac-vorbis-comment-tag/15332 "2013-12-27T17:40:29Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@DetlevD](https://community.mp3tag.de/u/DetlevD)
#### Post date: [December 27, 2013, 5:40pm UTC](https://community.mp3tag.de/t/empty-tag-field-in-flac-vorbis-comment-tag/15332/1 "2013-12-27T17:40:29Z")
I have a simple question about the FLAC / Vorbis Comment tag.
Is it allowed that a "FLAC / Vorbis Comment" contains a tag field, which is empty?
In German: Ist es erlaubt, dass ein "FLAC / Vorbis Comment" ein Tagfeld enthält, was leer ist?
I have to ask because there is a FLAC file, which contains four tag-fields ...
ITEM1=""
ITEM2="B"
ITEM3="C"
ITEM4=""
... after applying the M3tag action "Import tag-fields (guess values)".
The four tag-fields have been created by the action "Import tag-fields (guess values)" using ...
Source string: " ~~~B~~~ C~~~"
Mask string: "%ITEM1% ~~~%ITEM2%~~~ %ITEM3%~~~%ITEM4%"
(without the quotation marks).
I am surprised because it works differently than the MP3 tag.
When I open the dialog "Extend Tags..." and remove one of the two empty tag-fields, then both empty tag-fields will be removed at once.
It looks like a buggy behaviour in Mp3tag, but I am not sure because I do not know how Mp3tag works with the tags internally for MP3 and FLAC.
DD.20131227.1940.CET
---
### Author:  [@Nature](https://community.mp3tag.de/u/Nature)
#### Post date: [September 1, 2014, 11:21am UTC](https://community.mp3tag.de/t/empty-tag-field-in-flac-vorbis-comment-tag/15332/2 "2014-09-01T11:21:24Z")
> [@DetlevD](#):
>
> I have a simple question about the FLAC / Vorbis Comment tag.
>
> Is it allowed that a "FLAC / Vorbis Comment" contains a tag field, which is empty?
>
> It looks like a buggy behaviour in Mp3tag, but I am not sure because I do not know how Mp3tag works with the tags internally for MP3 and FLAC.
Hi! What a coincidence!
I was just about to report this very same bug. In my opinion it is clearly a bug, because the behaviour of leaving blank fields only happens when you use the _Guess Values_ Type Action.
If you use the _Format_ Type Action, it doesn't happen and this is very annoying actually.
I just found out that on My Natural Case Format Actions, and I'll have to find a turn around. But it won't be easy, because that means using extra commands or checking each field individually which completely ruins the purpose (simplicity and efficiency) of a _Guess Values_ Type Action. ☹
I think this thread should move to the But Section so that Florian can see it. 🙂
I'm just about to report another bug, and I'll mention this thread. 😉
---
### Author:  [@aax](https://community.mp3tag.de/u/aax)
#### Post date: [April 16, 2017, 10:26pm UTC](https://community.mp3tag.de/t/empty-tag-field-in-flac-vorbis-comment-tag/15332/3 "2017-04-16T22:26:08Z")
This still hasn't been solved, so I was wondering if there's some workaround for deleting blank tags that can be done in an action group?
---
### Author:  [@poster](https://community.mp3tag.de/u/poster)
#### Post date: [April 18, 2017, 1:31pm UTC](https://community.mp3tag.de/t/empty-tag-field-in-flac-vorbis-comment-tag/15332/4 "2017-04-18T13:31:22Z")
Is sufficient to save the files once again after the action.
Then the empty tag-fields are deleted.
---
### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [April 21, 2017, 1:01pm UTC](https://community.mp3tag.de/t/empty-tag-field-in-flac-vorbis-comment-tag/15332/5 "2017-04-21T13:01:23Z")
This has been fixed with the current Development Build [Mp3tag v2.81c](http://developer.mp3tag.de).
Kind regards
– Florian