ASCII Key 

ASCII Key is a utility (Excel macro) working with unformatted text files. It uses the platform "EXCEL 97 / 2000 ". The main focus is "comparing two text files", "identifying duplicate records" and "filtering", always using only selected columns.
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PhotoSort 

Finding duplicate images has never been easier. PhotoSort does this for you, and does it fast. This utility is completely hand-made in assembly language for some serious performance and comes with modern looking and very easy to understand interface.
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zsCompare 

Manually or automatically compare files, folders, text files, source code, Word documents, Excel spreadsheets, and pdf files. You can even compare files within zip files. Includes zsDuplicateHunter a powerful duplicate file finder for free!
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Check Identical Files 

This utility is able to check your drives for annoying duplicate files, and provides easy capability of deleting them, saving you megabytes of precious diskspace. An absolute must for people who have a huge number of files (e.g. pictures or mp3).
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Duplicate MP3 File Finder 

Find and delete duplicate MP3 files on your computer. Duplicate MP3 File Finder groups similar files together and provides detailed information on each MP3 to make sure you remove the right duplicates.
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EF Duplicate MP3 Finder 

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 and WMA. Multilingual. Shareware, FREE Updates.
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