Audio Comparer is a Windows desktop application for MP3, MP2, MP1, WMA, AIF, WAV and OGG audio files comparison. The program's main goal is to find duplicate audio files and sort them in whatever way you want. The main difference between Audio Comparer and other duplicate MP3 finders is the fact that Audio Comparer "listens" to your audio files and compares them by their actual audio content, just like your own human ears do. However it's much faster and it never forgets a sound it's heard just once, thus it doesn't matter what compression type or encoding bit rate your audio files have, Audio Comparer is able to recognize them by the sound. Contrast this technology with other MP3 comparison tools that just look at MP3 file tags or even crude file size to locate duplicate files and can't identify similar audio files at all.