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Duplicate Images and MD5/SHA Hashes

6/18/2007

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I was in the middle of backing up some family photos when I discovered that I had multiple copies of the same image in different folders. Not only is this a waste of space, but it can also lead to images getting deleted on accident when you believe you have a copy in another folder, but actually do not.

That begs the question, how in the world do you sort though thousands of photos making sure that you keep one, and only one copy of each? If you haven't renamed the files, you may be able to use the file name to weed though the duplicates, but what if you renamed some of the files, or have duplicate names on files? Now it starts getting a lot more complicated.

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    Evadman

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