Cequal Software
Clone Download Killer 1.0
Clone Download Killer is an internet tool help you check identify of URL before really downloadt. CDK would check the duplicate of file name , file size and content snippet. It checks files in high speed and monitor downloads and IE clicks.
Network & Internet > Download ManagersDuplicate files manager 4.0
Duplicate files manager help you find out and clean duplicate files,expand disk space and optimize disk. You could find files with same content , same file name or same size . And compare two folders,find out same files between these two groups .
System Utilities > File & Disk Management