Many hobbyist users don't check optical discs' contents after being written. Instead just rely on the "success" or "fail" provided by recording software. Or sim

Many hobbyist users don't check optical discs' contents after being written. Instead just rely on the "success" or "fail" provided by recording software. Or simply re-insert a written disc & take a glance at the directory structure. As opposed to read back an entire disc's contents & compare bit-for-bit with the source data. Read: discs could be bad on day 1. Or mostly ok but with some corrupted files in there. But user didn't check, notice or even care. Decades of storage don't improve anything (other than the data not being needed anyway).