Alrighties... I'll show you what's going on with this new version you've giving me.
MP3GAIN_UNDO: +000,+000,N
REPLAYGAIN_ALBUM_GAIN: -8.690000 dB
REPLAYGAIN_ALBUM_PEAK: 1.251947
REPLAYGAIN_TRACK_GAIN: -8.690000 dB
REPLAYGAIN_TRACK_PEAK: 1.251947
This is what MP3Gain gives for the album without any volume changes. The album's current db is 97.7. So I want to lower it down 5 db to 92.7. Since MP3Gain only works in 1.5 increments/decrements, it'll lower to 93.2. So, I lower it in MP3Gain, and get these results:
MP3GAIN_UNDO: +003,+003,N
REPLAYGAIN_ALBUM_GAIN: -4.175000 dB
REPLAYGAIN_ALBUM_PEAK: 0.744412
REPLAYGAIN_TRACK_GAIN: -4.175000 dB
REPLAYGAIN_TRACK_PEAK: 0.744412
So, after resetting the values back to its original values in MP3Gain, I decide to do the same lowering of 5 db in MB. It should match the values as above. Instead, I get these results:
MP3GAIN_UNDO: +006,+006,N
REPLAYGAIN_ALBUM_GAIN: +0.340000 dB
REPLAYGAIN_ALBUM_PEAK: 0.442630
REPLAYGAIN_TRACK_GAIN: +0.340000 dB
REPLAYGAIN_TRACK_PEAK: 0.442630
Even if I reset these values back to the original values and raise it by 5 db, I get the same results. And the volume quiets down to the 89.0 default (no matter what one does).
Sorry this is not working for my computer. I can do a debug version if you want. Alternatively, I can still use MP3Gain for my mp3 files and just manually adjust the volume for AAC files via the volume adjustment settings.