# replaygain to iTunes soundcheck
**URL:** https://community.mp3tag.de/t/replaygain-to-itunes-soundcheck/12918
**Category:** Support
**Created:** [January 10, 2012, 9:01pm UTC](https://community.mp3tag.de/t/replaygain-to-itunes-soundcheck/12918 "2012-01-10T21:01:31Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Kees788](https://community.mp3tag.de/u/Kees788)
#### Post date: [January 10, 2012, 9:01pm UTC](https://community.mp3tag.de/t/replaygain-to-itunes-soundcheck/12918/1 "2012-01-10T21:01:31Z")
I've been using the combination of Foobar/mp3 tag for years now. Foobar gets replaygain and I found instructions on how to convert those to iTunes Soundcheck using mp3tag.
All this time I've been wondering about one thing though. In MP3tag I show the comment field ans also "Comment Itunnorm" which holds the iTunes value. Ather the conversion though some files (not all) have a comment which also looks like a "comment itunnorm" value but it is not the same value. What is this, can I just delete those and can I prevent them from occuring (if unnecessary I want my tags to be clean).
conversion is thone using this action, courtesy of someone on the forum here:
$if($eql(%\_extension%,mp3),$rg2sc(%REPLAYGAIN\_ALBUM\_GAIN%),)
Example: I only use id3v2 tags:
file
comments: 00001FC0 00001FC0 00001FC0 00001FC0 00001FC0 00001FC0 00001FC0 00001FC0 00001FC0 00001FC0
Comment itunnorm: 00001EF5 00001EF5 00001EF5 00001EF5 00001EF5 00001EF5 00001EF5 00001EF5 00001EF5 00001EF5
The replaygain values are like -8.99 dB (four of thos with different values)
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### Author:  [@dano](https://community.mp3tag.de/u/dano)
#### Post date: [January 10, 2012, 9:42pm UTC](https://community.mp3tag.de/t/replaygain-to-itunes-soundcheck/12918/2 "2012-01-10T21:42:37Z")
Some programs remove the itunnorm description from the comment tag (foobar also used to do that) and you end up with a regular comment tag.
They have no use so delete them if you want.
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### Author:  [@Kees788](https://community.mp3tag.de/u/Kees788)
#### Post date: [January 10, 2012, 9:51pm UTC](https://community.mp3tag.de/t/replaygain-to-itunes-soundcheck/12918/3 "2012-01-10T21:51:14Z")
Thanks, appreciated!
> [@dano](#):
>
> Some programs remove the itunnorm description from the comment tag (foobar also used to do that) and you end up with a regular comment tag.
> They have no use so delete them if you want.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:23pm UTC](https://community.mp3tag.de/t/replaygain-to-itunes-soundcheck/12918/4 "2026-02-09T12:23:34Z")