100gb bluray disc that will last 200 years

[dvdmike]

Verbatim has unveiled a new 100GB Blu-ray optical disc, the M-DISC, which promises to store data for as long as 2000 years. In other words, if the disc was burnt back in Nero's days (the Roman Emperor, not the popular DVD burning software), it would still be readable now.

You should be able to fit about 80 minutes' worth of highly compressed HEVC 4K content on it (assuming a bit rate of 12Mbps).

http://www.techradar.com/news/comput...mpaign=project


Not sure what is scarier, 2000 years or 12mbps 4k

[AK65]

The math on that seems off considering 100 GB is the biggest UHD disc offered?

[maps15]

12mbps? yikes

[vargo]

The raison d'etre for the original M-Disc was that CD-R and DVD-R used organic dyes which degrade over short periods of time, especially in the presence of UV light.

BD-R HTL use an inorganic metallic layer which is entirely different from the old organic dyes. They're extremely stable over time.

There is a reason why M-Disc BD-Rs or BD-XLs can be burned in a standard burner. They're note hugely different and their talk of a 'rock like layer' or creating physical pits on the disc is purely creative marketing.

Not to mention 2000 years is a very crude mathematical extrapolation based on the error rates in the study. They've done nothing to address the longevity of the actual discs themselves.

[Richard Paul]

The math in that article is very wrong. A bit rate of 12 Megabits per second with a runtime of 80 minutes only adds up to 7.2 GB.

[I KEEL YOU]

Yeah, kind of hard to believe that. Ordinary blu rays were supposed to last for a lifetime and there are dozens of cases of systematic bronzing with some early releases with the list constantly growing.

[thankyouforthevenom]

As nobody will be around to prove it right or wrong, i've just invented a blu ray disc that will last 20 million years. Give or take a decade.

[AgentOrange]

Originally Posted by I KEEL YOU

Yeah, kind of hard to believe that. Ordinary blu rays were supposed to last for a lifetime and there are dozens of cases of systematic bronzing with some early releases with the list constantly growing.

Those are manufacturing process issues though - some of those discs went bad in just a few years. That says nothing about the longevity of the properly manufactured blu-ray disc, which is still the vast majority (like 99% of all manufactured discs).

2000 years is insanely dubious. Yet I'm sure there are plenty of DVD discs still good that are going on 20 years. Pretty much my entire CD collection still seems good after 20+ years. Even by current standards, pushing it out to 40 or 50 as a lifespan is perfectly believable - and if they developed some "ultra-long lifespan" disc that goes 100 years I might believe it. Just not 2000, that is far too long to comprehend (and pointless, really, save for hardcore/permanent archiving purposes).

Regardless of the theoretical lifespan, manufacturing defects and random failures will always undermine a certain % of discs. There is no such thing as a fault-free manufacturing process. For that reason no archivists would ever just count on their 1 disc, they would have multiple copies and probably multiple different storage mediums.

[Al_The_Strange]

Just so you know, this thread title has a tenfold error. I thought every BD could last as long as 200 years.

But 2,000, holy crap...