M-Disc logoI’ve replaced the aging Blu-ray drive in my computer with a shiny new LG one. Amongst other things, this one burns Blu-ray discs rather than merely reading them. And, I see from the LG website, it also supports the new 128GB BDXL format.

But on the front was something I’d never heard of: M-Disc. A little googling around revealed that this is a new write-once recordable DVD technology that involves making actual pits in the recordable material

, rather than simply changing the reflectivity of dies. The advantage is longevity. They say that these are good for a thousand years and impervious to UV, light and temperature (within reason I imagine). They are 4.7GB capacity.

It seems that you need a special drive to burn them, but once burnt they are compatible with all DVD drives.

Wikipedia says that a Blu-ray version is on the way.

I see that the M-Disc people are selling blank discs from their website. Surprisingly, and pleasingly, they are not insanely expensive: $30 for a pack of ten. Pretty good value if they really are good for a thousand years.

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