>>513511695
HDDs:
Last about 3–5 years, sometimes up to 7 with care.
Fail due to mechanical wear, heat, vibration.
In arrays, controller or software faults can impact many drives at once.
SSDs:
Typically last 5–10 years, but often 3–5 years for consumer use.
Wear out from total data written (write cycles); denser cells fail sooner.
Can fail suddenly; bugs or power issues can affect groups if not isolated.
Standard DVDs:
Last 20–1,000 years if quality discs and stored well.
Failures from disc rot, scratches, poor storage practices.
Each disc is independent, so one failure doesn’t affect others.
Why Decentralized Risk with DVDs Is Better:
Each DVD is an isolated backup; one loss doesn’t harm the rest.
No shared firmware or electronics to cause mass failure.
Cheap, simple to distribute backups to multiple locations—strong disaster resilience.
No malware, network, or power surge risks across all copies.
Easy to replace any single bad disc. True, low-cost redundancy.
This makes DVDs an obvious long-term backup compared to bullshit magnetic tapes duhhhh im a fuckface dur central storage with HDDs or SSDs bullshit and etc.