# \[F\] Mp3tag breaks ReplayGain tags in MP4

**URL:** https://community.mp3tag.de/t/f-mp3tag-breaks-replaygain-tags-in-mp4/821
**Category:** Fixed Bugs
**Tags:** bug-fixed
**Created:** [February 16, 2004, 7:55pm UTC](https://community.mp3tag.de/t/f-mp3tag-breaks-replaygain-tags-in-mp4/821 "2004-02-16T19:55:47Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![klillevo](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/k/76d3ee/32.png) [@klillevo](https://community.mp3tag.de/u/klillevo)
#### Post date: [February 16, 2004, 7:55pm UTC](https://community.mp3tag.de/t/f-mp3tag-breaks-replaygain-tags-in-mp4/821/1 "2004-02-16T19:55:47Z")

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I had some trouble with version 2.16 and 2.17:

1. Used foobaar2000 to add replaygain tags to an album I just encoded in AAC
2. Used MP3Tag's auto-numbering wizard, then Tag-\>Filename
3. Now ReplayGain tags are no longer recognized by Foobar2000, displaying them in the general list of metadata as:  
REPLAYGAIN\_TRACK\_GAIN1 = +x.yz dB  
REPLAYGAIN\_TRACK\_PEAK1 = 0.xyxz  
REPLAYGAIN\_ALBUM\_GAIN1 = +x.yz dB  
REPLAYGAIN\_ALBUM\_PEAK1 = 0.abc  
Foobar does not recognize these tags as replaygain tags, and plays the files at the wrong level. After re-scanning the files with foobar, it saved new tags with the correct info.

I did one additional test, and it looks like it is the auto-number wizard, which kills/renames the replaygain tags such that foobar no longer recognizes them.

I can always run MP3Tag first, then replaygain scan, but it would be nice to be able to run MP3Tag without having it mess up the replaygain tags.

Advice?

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### Author: ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [February 17, 2004, 11:06am UTC](https://community.mp3tag.de/t/f-mp3tag-breaks-replaygain-tags-in-mp4/821/2 "2004-02-17T11:06:37Z")

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This bug is fixed with the latest [Development Build](http://developer.mp3tag.de) of Mp3tag.

Thank you very much for reporting and bringing this bug to my attention.

Best regards,  
~ Florian

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### Author: ![Florian](https://community.mp3tag.de/user_avatar/community.mp3tag.de/florian/32/5759_2.png) [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [December 28, 2018, 1:48pm UTC](https://community.mp3tag.de/t/f-mp3tag-breaks-replaygain-tags-in-mp4/821/5 "2018-12-28T13:48:21Z")

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