mono/taglib-sharp — pull request #17 by karamanolev (2012-10-24 00:12:46+00:00)
Title: ReplayGain support for Vorbis Comments / FLAC and ID3v2 / MP3.

The properties: ReplayGainTrackGain, ReplayGainTrackPeak, ReplayGainAlbumGain, ReplayGainAlbumPeak have been added to Tag, CombinedTag, the Vorbis Comments Tag type and the ID3v2 Tag type.
http://replaygain.org/