dupe files by comparing thier name. The basic concept is to compare the words together and check how many words match (in %).
Example: "Limp Bizkit - My Generation.mp3" and "05 - My Generation (Limp Bizkit).mp3". To determine if these 2 files match, Mp3 Filter will count the number of total words (9), and see that 8 words (Limp,Bizkit,My,Generation) matches on the 9 words. That makes 88.8%.

This means that if you did set you minimum % at 88% or lower, Mp3 Filter will flag these files as duplicates, and wait for your command to terminate, crush, slice-and-dice, unleash-hell-on. annilate, or simply poke-with-godly-might one of these files.

This was *ONE* duplicate scan type. There are several types of duplicate scan method. Read the help file for more information.