I use iVolume http://www.versiontracker.com/dyn/moreinfo/macosx/20728 to adjust my iTunes library...
And the best is: If you burn a audio CD in iTunes, you have the same gain on the CD...!!!
MacMP3Gain
analyze & adjust mp3/aac files to have same volume
Version: 1.9a
Another cool tool for doing the job
Feedback Type: Commentary
Contributed by: Macianer Thursday, November 15 2007 @ 11:03 AM PST
Product Platform: MacOSX
Used Product For: Have Not Tried
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