how to detect file corruption

[hardwarenuts0]

Sometimes, my files become corrupted without me noticing - this happens to my photos a lot. This doesn't bother me when I notice it because I have backups. It's growing to be a pain to manually go over all the photos from time to time (I have tens of thousands). What can I do to automatically detect if a file has been corrupted?

So far, the only method I have found is to use MD5 checksums. But I haven't found a way to automate this.

For example, if I have a folder with 500 pictures, how I do determine if the MD5 checksums for the photos have changed since last time I checked?

 

[unksol]

Files don't just "get corrupt" unless there us a problem with the storage medium. Assuming they are on a harddrive and this keeps happening the harddrive is probably failing.

For the MD5 stuff 10 seconds on google leads to this, which sounds like what you want, but I in no way vouch for it.

Http://getmd5checker.com/