On: The Reliability of Optical Disks

[digisign]

Interesting because hard disks are not a particularly reliable form of backup. As long as you have enough copies.

[WalterBright → digisign]

I know, I've had many fail on me over the years. Quantity, though, has a quality all its own!

[lostmsu → WalterBright]

Same here. I just have a mirrored Storage Space for critical data with ReFS and checksums (though Microsoft did not make that one easy to understand so I am unsure if the data is safe that way).

UPD. just searched, and found, that I needed to enable periodic scrubbing in Task Scheduler: Microsoft -> Windows -> Data Integrity Scan section. I already had data integrity streams enabled (another thing you have to do manually after creating the volume).