[F] Mp3tag breaks ReplayGain tags in MP4

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?

This bug is fixed with the latest Development Build of Mp3tag.

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

Best regards,
~ Florian