[LAU] Level Matching

[Folderol]

I have quite a large collection of mp3s and ogg gleaned from all over
the Internet (all freely licensed) that I greatly enjoy. However, they
are all recorded at completely different levels which make playing a
program of them a bit problematical.

Does anyone know of an automated way I can bring these all to a
similar listening level. 

-- 
Will J Godfrey
http://www.musically.me.uk