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The best directory comparison tool for Windows PDF Print E-mail
Written by Brett Brewer   
Wednesday, 05 March 2014

If you've ever needed to compare a shit-ton of files, on say, two different 4 Terrabyte raid5 drives to figure out which of your files from in an old backup on your backup drive shouldn't be replaced by the same files on your raid drive because you had a stripe go bad on your main raid and you don't want to copy over files you know are intact on your backup, but you do still want to back up any files that have changed and may not be (probably aren't) corrupt on your main drive.......well, you probably spent some time cursing the myriad of directory comparison tools out there if that's ever happened to you like it just did to me.

Fortunately, there is one (and only one) directory comparison tool that doesn't completely suck, in fact, it can make short work of comparing many terrabytes of files in just an hour or two, without crashing or running out of memory. It comes in both 32 and 64 bit varieties. Oh, and did I mention this awesome program is FREE -- like 100% free -- like, made by a guy named Juan M. Aguirregabiria, somewhere in some spanish-speaking country -- I think Spain. Okay, so without further ado, you can find this awesome tool called "Directory Compare" buried in a frame in his antiquated homepage here:

That's the direct link to the page. His full software section is stuck in some silly looking frame-based layout here: 

and if you care, here's his full homepage: 

Don't even bother with any of those other directory comparison tools out there, I've tried MANY and this is the only one I'll ever use again. It's simple, it's fast and it just works! Of course, this isn't a full file comparison tool, you'll want to use something like WinMerge if you're looking to compare the actual contents of some files, but for directory comparison, you can't beat Juan M. Aguirregabiria's 'Directory Compare'. 

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