# ITUNSMPB tag deleted from AAC-files
**URL:** https://community.mp3tag.de/t/itunsmpb-tag-deleted-from-aac-files/12484
**Category:** General Discussion
**Created:** [September 6, 2011, 7:46pm UTC](https://community.mp3tag.de/t/itunsmpb-tag-deleted-from-aac-files/12484 "2011-09-06T19:46:01Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@grums](https://community.mp3tag.de/u/grums)
#### Post date: [September 6, 2011, 7:46pm UTC](https://community.mp3tag.de/t/itunsmpb-tag-deleted-from-aac-files/12484/1 "2011-09-06T19:46:01Z")
I use nero AAC (newest version) to encode from FLAC to AAC.
When I display the AAC-file I see an ITUNSMPB extended tag (it's used for gapless playback calculation).
Normally I populate the tags in the encoded files by copying the tags from the FLAC-files and pasting them into the encoded files - but then this tag disappears from the AAC-files.
I'm on v2.49, have been through the settings but can't find any obvious explanation to this.
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [September 6, 2011, 9:47pm UTC](https://community.mp3tag.de/t/itunsmpb-tag-deleted-from-aac-files/12484/2 "2011-09-06T21:47:13Z")
Existing tag fields are not kept if you use the paste tag command.
You have to save this tag field to a text file or maybe in the file name before you paste the flac tags and import it afterwards.
Or you use a program that copies the tags during the conversion (like foobar2000, ...)
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### Author:  [@grums](https://community.mp3tag.de/u/grums)
#### Post date: [September 7, 2011, 7:03am UTC](https://community.mp3tag.de/t/itunsmpb-tag-deleted-from-aac-files/12484/3 "2011-09-07T07:03:23Z")
> [@dano](#):
>
> Existing tag fields are not kept if you use the paste tag command.
> You have to save this tag field to a text file or maybe in the file name before you paste the flac tags and import it afterwards.
OK, I see - but is an Export/Import an easy process to set up?
How about implementing a feature like _Merge Paste_, ie overwrite tags which are represented in the paste buffer and leave the rest as they are?
Or better still: this could be the default behaviour for paste - you could still make sure that no old tags survived by deleting all destination tags first, then copy + paste?
**EDIT 13. septermber 2011:**
A few more questions:
1. Has Copy/Paste from Edit Menu the exact same functionality as right-click Tag Copy/Tag Paste?
2. Saw this in the FAQ ([Tag Copy](https://community.mp3tag.de/t/965/1)):
> [@](#):
>
> **How can I copy whole tags to other files?**
>
> Select the files you want the tags to be copied from and press [Ctrl+C]. This will copy the files' tag to the clipboard.
>
> By pressing [Ctrl+V], Mp3tag will then copy the tags from the clipboard to the desired files.
It seems that the documentation is not accurate - maybe the destructive nature of the paste should be mentioned?
Please also give comment about my feature suggestions?
Regards & thanks for a great program