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Has anyone used M-Discs for backup?

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First post, by Kerr Avon

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According to the webpage https://www.pcworld.com/article/2933478/stora … sand-years.html, the writable DVD and Blu-Ray discs called 'M-Disc' are supposed to remain reliable for up to a thousand years. I'd given up on using DVD-R discs for backup, as in my experience they can randomly develop faults even after just a few years, rendering them ultimately untrustworthy. But if these will work for a few decades, then that would be great.

So does anyone have any experience of these? Obviously it's too early to tell if they will work for many years, but presumably storage experts would have informed opinions about them, and it would be interesting to hear from end users who have tried them.

Reply 1 of 3, by dr_st

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I have a friend who uses them. Would you like me to ask him something?

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Reply 2 of 3, by Kerr Avon

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I'd be interested to know how long he's been using them, and if he's had any problems with them, please. My current method of backup, an external USB hard drive, is great (though I wish it had a READ ONLY switch, so no virus could find it's way on there), but reliable DVD-Rs would be a great secondary backup.

Reply 3 of 3, by SW-SSG

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I bought two of the DVD-R ones ages ago. They're still on the shelf, untouched; I don't have much especially important data that would fit comfortably on a pair of 8GB (or was it 4GB?) DVDs, and one apparently must use an "M-DISC Certified" DVD drive with their logo on it to burn them properly.

The Blu-Ray M-DISCs are surely more useful.

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