Comment by Asraelite
> There are those CDs made out of rock, but they have never veen proven to pass the test of time.
You're saying that something that has existed for less than 50 years doesn't count because we haven't been able to actually test it for more than 50 years, even though we understand the physics behind it and can theoretically predict how long it will last...
M-disc? I'd struggle to get hold of a blu-ray disk player to read one today let alone in 50 years time.
And a quick google reveals a lot of people are very worried about counterfeit disks too.