I'm in the process of building a computer based, touchscreen, mp3 jukebox for my gameroom. One of the problems that I am encountering during the process of digitizing my entire CD collection is the variances in "loudness" that have been discussed many times here in the audio forum. Older CD's are "quieter" than the newer CD's due to the production methods used. Once I transfer all of my albums to the jukebox I would like to be able to normalize the volume of the entire collection so that each song that comes from the jukebox is a "constant" volume. Very rarely will an entire album be played at once, instead classic rock will mix with 80's will mix with newer albums. I'm not concerned with possible sound quality loss (as long as it is minimal) from this process, but what I am wondering is if anyone knows of a utility that will take an mp3 collection, normalize it, and correct (rewite?) the files to the normalized volume level. Any input appreciated. Thanks!