I have some JPEGs with bit flips. I could tell because they display ugly artifacts at the point of the bit flip. (You can see the kind of artifacts I'm talking

I have some JPEGs with bit flips. I could tell because they display ugly artifacts at the point of the bit flip. (You can see the kind of artifacts I'm talking about here: https://xn--andreasvlker-cjb.de/2024/02/28/image-formats-bitflips/ https://xn--andreasvlker-cjb.de/2024/02/28/image-formats-bit...) I'd happened to archive the files to CD-R's incidentally. I was able to compare those archived files to the ones that remained on my file server. There were bit flips randomly in some of the files. After that happened I started hashing all of my files and comparing hashes when I migrate files during server upgrades. Prior to using ZFS I also periodically verified file hashes with a cheapo Perl script.