NAS also fail, and cloud backups can be taken away without notice.
Hence why multiple copies.
sure, but NAS and cloud doesn't fail at the same time. Also NAS provide some redundancy in-house as well. Whereas BluRay is a single copy - even if you burn multiple copies, they degrade at the same rate.
That would be true if I would have done all copies on the same day, and never duplicated disks.
You basically imply that you have a NAS that you regularly take backups to BluRay?
sure, but NAS and cloud doesn't fail at the same time. Also NAS provide some redundancy in-house as well. Whereas BluRay is a single copy - even if you burn multiple copies, they degrade at the same rate.
That would be true if I would have done all copies on the same day, and never duplicated disks.
You basically imply that you have a NAS that you regularly take backups to BluRay?