I concur on the checksums. With ~380TB of data, silent data corruption is something to be especially vigilant about. While it may be inconvenient, people should look into using filesystems like ZFS with end-to-end checksumming, error-correcting memory, proper shielding, as well as stress-testing their (non-overclocked) systems periodically to keep silent data corruption to a minimum. Hard drives can also be stress tested before holding actual data using utilities such as badblocks.
Film, tapes, laserdiscs, and players don’t last forever; eventually the digitized copy will be the better one in comparison and so data integrity is very important going into the future.