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Testing DVD-R and CD-R 25 years later: optical disks from Japan

(goughlui.com)
176 points csdvrx | 4 comments | 01 Apr 25 21:46 UTC | HN request time: 1.978s | source
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quantadev ◴[02 Apr 25 00:57 UTC] No.43552780[source]▶
IMO the only way to perfectly protect yourself against Ransomware Attacks is with CD-Rs, because it's something not even hardware can alter. A skilled take over of the root level of a machine can be encrypting everything and you'd never know it, until the day it denies your access, by deleting an encryption key until you pay up to get it back...you hope.
replies(6): >>43552844 #>>43552932 #>>43553040 #>>43553071 #>>43553804 #>>43554384 #
ryao ◴[02 Apr 25 05:02 UTC] No.43553804[source]▶
What about DVD-Rs and DVD+Rs?
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1. Dwedit ◴[02 Apr 25 07:21 UTC] No.43554394[source]▶
You don't need to worry about ransomware destroying the data on your writable DVDs, the discs themselves can do that fine.
replies(1): >>43554525 #
2. fbnlsr ◴[02 Apr 25 07:55 UTC] No.43554525[source]▶
Yeah disc rot is a real problem. CD/DVD-R are great when it comes to physically store drives (they don't take much space on a shelf and are easely sent via mail) but I'd rather use a hard drive and the cloud for my backups now.
replies(2): >>43555533 #>>43559274 #
3. daneel_w ◴[02 Apr 25 11:20 UTC] No.43555533[source]▶
The problem goes away if you burn slow, no faster than half the disc's max speed, to adequately affect the dye. I have CD-Rs and DVD-Rs that are 20 years old and work great. Inherent rot is mainly a problem with pressed discs which use aluminum instead of silver or gold for the reflective layer.
4. quantadev ◴[02 Apr 25 17:47 UTC] No.43559274[source]▶
I burn my CD-Rs at a very low speed, like someone else mentioned below, so the laser does a better burn. I don't use CD-Rs as primary backup. I have 10 external hard drives, 20 thumb drives, and do a CD-R only once every couple of weeks. I just feel better having multiple different hardware devices used.