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Submission + - Ask Slashdot: What's a good tool to detect corrupted files?

Volanin writes: Currently I use a triple boot system in my Macbook containing MacOS Lion, Windows 7 and finally Ubuntu Precise, on which I spend the great majority of my time. To share files between these systems, I have created a huge HFS+ home partition (MacOS native format which can also be read in Linux, and in Windows with Paragon HFS). But last week, while working on Ubuntu, my battery ran out and the computer suddenly powered off. When I powered it on again, the filesystem integrity was ok (after a scandisk by MacOS), but a lot of my files contents were silently corrupted (and my last backup was from August...). Mostly, these files are JPG pictures, MP3 musics and MPG/MOV videos with a few PDFs scattered around. I want to get rid of the corrupted files, since they waste space uselessly, but the only way I have to check for corruption is opening one by one. Is there a good set of tools to verify the integrity by filetype, so I can detect (and delete) my bad files?

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