1)   EF Duplicate MP3 Finder 4.20
The EF Duplicate MP3 Finder is a useful program that help you to find out and remove duplicate audio files with same or similar properties. Support the audio formats MP3, Ogg/Vorbis, FLAC and WMA. Multilingual. Shareware
EFSoftware, EFD3F, Duplicate, Find, Search, find similar MP3, determine same mp3, discover like mp3, find twin mp3, same mp3 observer,