Furry Technologists

1325 readers

10 users here now

Science, Technology, and pawbs

founded 2 years ago

MODERATORS

[email protected]

138

Video of ceramic storage system prototype surfaces online — 10,000TB cartridges bombarded with laser rays could become mainstream by 2030, making slow hard drives and tapes obsolete | TechRadar (www.techradar.com)

submitted 1 year ago by [email protected] to c/[email protected]

50 comments fedilink hide all child comments

Those totally look like the isolinear chips from Star Trek

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 14 points 1 year ago (1 children)

So like CD-Rs but with silica instead of organics.

I like the idea.

[–] [email protected] 1 points 1 year ago (2 children)

Seems more like a standard CD. It can only be written on once.

[–] Klear 3 points 1 year ago

CD-R is the standard CD. CD-RWs are the rewritable ones.

[–] [email protected] 1 points 11 months ago* (last edited 11 months ago) (1 children)

CD-ROMs are read-only(-memory) & usually stamped plastic covered with mirror-ish surface (aluminum-somethings prob?).

CD-R have an (recordable) organic layer on top you can burn lil patterns into, once only.

CD-RW can be re-written several times.

But none of them really last long.

[–] [email protected] 1 points 11 months ago (2 children)

Many pressed CD-ROMs and audio CDs will likely last over 100 years if stored properly. However, the tolerances in the standard are high so lots of manufacturers use cheaper materials and processes than intended while still producing discs with the CD logo. It will take decades before we really know which were worse than others. The most likely point of failure is delamination, which will leak air between the layers and oxidize the aluminum coating in a process named laser rot after Laserdiscs, the earliest commercial optical disc system.

Anyway, the longetivity of (re)writable CDs is indeed usually below 20 years.

[–] [email protected] 1 points 11 months ago (1 children)

Yes, storage is very important in the long run.

And music industry indeed had some of the thiccest disks afaik.

[–] [email protected] 1 points 11 months ago (1 children)

No, it’s not about the thickness. Most of it is clear plastic anyway, the data layer is only in the top few dozen micrometers. Also, all CDs and later 12cm discs were 1 mm thick by spec.

[–] [email protected] 1 points 11 months ago

Yes, I am talking about the top layer - some are def thiccer and more scratch resistant (I didn't mean thicket like you would notice looking at it from the side).

[–] [email protected] 1 points 8 months ago* (last edited 8 months ago)

The recording layers of the CDDAs (1983-1987) had already vanished. So they lasted no longer than 40 years.
"SHM-CD"s would probably meet that 100 year mark but DVDs made them pointless by the time they were first released.