How Strong is a BluRay Archive disc ?

Off-Topic
1

The subject says all:

I want to make archives using Blu-Ray discs and I do not know how strong the dis can be.

On CD-ROM (DVD), I had a bad experience on some discs. That is the reasong why I ask for your experience for BD disks.

I actually have 25GB discs, but I can buy some other size / brands.

2

I use normal BD-Disc for short time backup and M-DISC DVD for long time backup. M-DISC is available for DVD and BD-Disc from 4,7 GB up to 100 GB. More information is available here. M-Disc gives 1,000 years storage solutions.

3

Emile - when you say how strong, are you referring to compressive strength or tensile strength?
What are you planning to do to the disc, in order to warrant knowing how strong they are?

Or were you referring to the life expectancy of the discs?

4

This one.

5

Thanks Horst: 1000 years is long enough for me !

And the price correspond to the longevity ;-:slight_smile:

6

As for any media type, there will be bad media and the data won’t be recoverable. If you really need to be able recover the data, make multiple backups and keep them at separate locations.

7

and test them periodically and make new clones if you find one is bad

had to do that for one company that had moved from paper to 3/4" tape
some tapes were 15 years old - the base data as much as 40+ years old
then they moved to DAT’s
and now I have no idea what they use

but periodic testing of backups was always on the to do list - one set every week minimum
and they had to retain records “for the life of the pipeline + 7 years” - joy :slight_smile:

8

Must I stay with 2.5" external hard disks ?