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How to Identify Corrupted Files?

Over time, a defective cable has led to me accidentally "unplugging" my external ssd without ejecting. As a result, a lot of my files have been corrupted, but I have no way of identifying which ones. I can replace the corrupted files without much issue, but the sum total of all of my files is so large that I can't replace them all, as I have to do it manually. So how do I identify which files are corrupted? Is there some app or script I can run to identify them? Most of the files are video and audio and if I open a corrupted file, I have to reset my laptop to get out of the freeze, so it would take far too long to go through them manually.

MacBook Pro 13″, macOS 10.14

Posted on Jun 16, 2020 9:53 AM

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The application that opens the "corrupted" file format would tell you that it is corrupted (or hang as you have mentioned), but nothing else that ships with the operating system will tell you which specific files are messed up. I suggest using Disk Utility First Aid on that external drive, and see if it finds and resolves issues.

Posted on Jun 16, 2020 10:06 AM

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Question marked as Apple recommended

Jun 16, 2020 10:06 AM in response to belegityt

The application that opens the "corrupted" file format would tell you that it is corrupted (or hang as you have mentioned), but nothing else that ships with the operating system will tell you which specific files are messed up. I suggest using Disk Utility First Aid on that external drive, and see if it finds and resolves issues.

How to Identify Corrupted Files?

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