17 Jan
2023
17 Jan
'23
4:15 a.m.
Not sure about those specifically. I think mdisc claimed 25 or 100 years
but obviously can't prove it and if it's scratched from a holder it would
be the same impact. Personally I always figured each little scratch on
anything larger than a DVD would be a critical amount of data.
This sort of adjacently brings up media life spans which I'm finding
increasingly annoying. I have lots of hd-dvds that apparently suffer from
poorly pressed labels and aren't playable anymore. One would think, being a
newer tech than DVD they'd be good way longer. So even properly stored and
not scratched I'm able to lose data thanks to crap quality of Warner discs.
Not sure if laserdiscs also fall in to this but I've also heard some horror
stories from collectors of optical game systems with CD rot, etc.
On Mon, Jan 16, 2023, 8:04 PM Ryan de Laplante via cctalk <
cctalk(a)classiccmp.org> wrote:
What about M-DISC DVDs and BluRays? Archival grade,
not susceptible to
magnetism or EMP. I think BluRay discs are made of a harder material than
DVDs and don’t scratch as easily.
On Jan 16, 2023, at 8:11 PM, Chris via cctalk
<cctalk(a)classiccmp.org>
wrote:
Been there. Seen it. It seems paper or tyvek is the way to store these
things.
But the question is in 2023 why are you still committing data to optical
media? I dumped all my cds and dvds on to magnetic storage years ago. I got
burned waiting as long as I did even.
Some of the old spinning cd cleaner/restorers used an abrasive slurry.
The last one I bought (Onn) only has a cleaner afaik. You'll want to clean
the disks thoroughly. Then try a "cleaning" solution that's more
aggressive. My old cd cleaner would leave circular scratches on the disk.
But it was readable after that. In 1 instance (then I lost it). Such an
approach should be a last resort though.
Don't just rely on Mac/Windoze facilities for reading stubborn disks.
There are programs that work better if you search.