Just one article discussing it. Do you have a source to back this up? M-DISCs are getting hard to purchase these days, and I have a lot of stuff I want to put on them which I likely will want to look at in 30 years.
Mdisc uses a special very hardened layer thats set it apart from other discs. That is why long term storage works so well.
"Instead, the M-DISC™’s data layer is composed of rock-like materials known to last for centuries. The M-DISC READY™ Drive etches the M-DISC™’s rock-like layer creating a permanent physical data record that is immune to data rot. The stability and longevity of the M-Disc DVD has been proven in rigorous tests conducted according to the ISO/IEC 10995 test standard for determining data lifetime of optical media."
