No

Sounds like those old bdr’s should be checked and possibly rearchived 😂. I think the Blu-ray M-Discs are the ones that claim the longevity.

I mean, you should always check your backups and make 2 for good measure, but supposedly some of these newer ones are made for archival and claim between 10-100 years. Never trust such claims without verification but if true could be the best thing for archival besides punching bits in stone.

Blu-rays are a viable backup medium for long-term storage