Do you suspect your Mac's hard drive is cluttered with duplicate files? It's amazing how much hard drive space can be taken-up by them and we've got just the tool for you: three free licenses worth $19.95 for the excellent Decloner to give away.
Decloner helps you recover lost disk space and eliminate duplicate files on your Mac. The developers guarantee a high degree of accuracy due to the use of the SHA-1 algorithm to determine if files are identical.
Using Decloner is easy. Simply browse to the file or directory that you want to scan for duplicates and click Scan.
Depending on the size of the folder, scanning can take a while but Decloner is very accurate at identifying which files are possible duplicates.

You can choose whether to keep the oldest or newest or Trash items manually. The good thing is that whatever you do, nothing is really lost. All removed files are moved to the Trash can so you can restore them, if the worst happens. You can use QuickLook to examine the contents of suspected duplicate files or folders just as you would in Finder. Decloner even works for external drives as well.
Leave a comment saying why you'd like a free copy of Decloner and the three best will receive a license for the full version.

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I need as many as I can get for my war against the Raelians. (http://archives.cnn.com/2002/HEALTH/12/27/human.cloning/index.html)
I have upgraded my mac and I know that there are a lot of duplicate pictures etc. on my computer that I have yet to recover. I was making a dvd of my father's family and one day I lost it in my computer. I had to start over. So who knows what is in there. Please consider me!
I am retired, and working on family genealogy leads for over a decade now. I work on both a PC and iMac, always searching for a 'better way' of working with the genealogy data I have found in various websites over the years. By now, after a decade, I have collected thousands of files and 'bits' on information on my ancestors. And these have been replicated, as I have moved to newer software and hardware, but for fear of losing significant information, I have carried all these files, old and new, forward. Now it is time to write my book, and I have many, many duplications of files spread across my hard disk. I really need to weed these out to a single file of each, in order to proceed with my book. DeCloner looks like the answer!
Three best win and only three entries three weeks later. Did we win? Please?
You'll be pleased to know Alan that you, Edmund and Cathy have just been sent licenses by the developer. Well done and hope you enjoy the application!
Sorry Elliott but the competition is now over!