M-Disc

Pros

• M-Disc if kept in the proper conditions will last for a few hundred years. It's one of the safest ways to store data, albeit in lower volumes.
• Absolutely because optical disks don't degrade if kept out of the sun (and MDisks just straight up don't degrade period).
• But for small amounts of data, M Disc is the go to, from the little I know about it.
• m-disc - rated at hundreds of years in lab tests
• The media best able to last that will be optical and most likely BD-R SL and certainly any type of M-Disc.

Cons

• The only digital media that *claims* to go beyond 30 years is M-Disc. This optical disc medium's claims of 1000 years is unproven and there's a larger context you need to be aware of.
• That said, I'm not sure M-Disc has any real benefit over other archival-grade Blu-rays. They're probably not worth it if you're planning to replace them in 10 or 20 years.
• The idiots on this sub who regularly do circlejerks on M-DISC being able to last 1000 years are still living rent-free in my head.
• It really depends on the job type and how much money the client wants to burn on DataLifePlus/M-Disc/Sony discs of 25-128GB sizes
• It's marketing BS. Sure they may have testing that shows high reliability, but nothing beats redundancy and validation.