windpig wrote in post #17219252
you think more reliable over 10 years than SSD if only used as storage with
no constant use?
The property you are looking for is called Data Retention. Flash storage is NOT the best for that. Optical disc like DVD and BlueRay are worse. They use metal for the reflective material which is subject to oxidation The best medium is still magnetic. That is why archieve is still be done with tapes these days.
I persoanlly will use HDD for backup. Multiple copies (2 external for me) periodic backup, then store in book shells/closet with power off. I used to think I need medium that last forever, but now looking back, I have switched from USB2.0 PATA based HDD to Firewire/USB PATA based, thinking FW is the future. Then Firewire basically died. Newer computers don't even have them anymore. And now USB3 SATA based drive. Each set lasted about 5-6 years. None of my backup drives has die (knock on wood) but I decided to switch them out anyway because as technology advance, I got faster interface and bigger drive each time while paying less. So something to consider.