@Hypex

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Hypex wrote: @TRIPOS Mechanical drives cannot be trusted. And I would trust SSD drives less.

I think it depends a lot about the quality of drives.. Enterprise grade HD are expensive but still the price/amount of data/physical storage space ratio compared to DVDs is way better.

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Optical media lasts well in storage.

From my experience, Floppy Disks are lasting longer than DVDs and CDs. And I'm comparing the best Floppies I could afford back then (which were the cheapest bulk-floppies on the market I guess) with mid-range to high range CDs and DVDs I used to buy for archiving files.
And the dark and dry storage room is the same, the boxes are just 50cm apart. Last time I checked, about 10% of the optical media had read errors.

@Amigo1

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I think it depends a lot about the quality of drives..

That can be hard to tell. My A1200 had a 2.5" 500MB Quantum that boasted lots of features and it eventually started to packup. Also had SCSI Seagates but only 2nd hand that started to fail.

My A1-XE had two WD drives, 80GB and 160GB, and the 80GB didn't last long after I bought it, a few years I think it was.

Replaced the 80GB with a lesser 40GB Seagate which has been okay.

X1000 using a Samsung.

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From my experience, Floppy Disks are lasting longer than DVDs and CDs.

I have floppies from my teenage years that still work. Started backing them up recently. Some failing.

I also have a few CDRs but a bit on CDRW simply because I didn't want to erase it. Usually a DVD would be good for this. Expect BD to last less.

Probably keeping old backup media and replicating it on new media as it comes out would be a good idea. Given the older stuff tends to be better made. A kind of RAID. Redundant Array of Indexed Discs.

Last edited by Hypex on 08-Feb-2017 at 03:37 PM.

@Hypex

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I also have a few CDRs but a bit on CDRW simply because I didn't want to erase it. Usually a DVD would be good for this. Expect BD to last less.

You can get M-class special archive use Blu-Rays that should last decades. The burn layer is like rock!

Amazon.co.uk: Millenniata M-Disc Blu-Ray Discs

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios

@BigD

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You can get M-class special archive use Blu-Rays that should last decades. The burn layer is like rock!

how so you tell apart of actual experience? how many decades sis they last for you? or are you really employed at frauenhofer in the ageing material test departments?

@wawa

The manufacturer claims 1,000 years but I think 30 years would be a safe asumption. The layer uses rare metals and resembles rock as far as environmental suseptibility goes. Seems a safe bet if compatible with your drive. No I am not employed by them but it looks like a neat technology though suseptible to worthless coaster burn errors as all optical media is! I've given up on dual layer DVDs and Blu-Rays for that reason

_________________
"Art challenges technology. Technology inspires the art."
John Lasseter, Co-Founder of Pixar Animation Studios