31 Jan
2023
31 Jan
'23
2:28 p.m.
On Jan 31, 2023, at 2:19 PM, Paul Koning
<paulkoning(a)comcast.net> wrote:
I was quite frankly amazed that I was able to recover data from Memorex CD-RW disks.
I don’t remember if I’ve run across any DVD-RW disks in my efforts (they do exist).
Zane
On Jan 31, 2023, at 5:03 PM, Zane Healy via
cctalk <cctalk(a)classiccmp.org> wrote:
On Jan 31, 2023, at 10:22 AM, Steve Lewis via cctalk <cctalk(a)classiccmp.org>
wrote:
I don't remember if RW (erasable) DVDs exist, or if that is only offered for CD
blanks. As I understand it, the RW technology has nowhere the longevity of the write-once
kind. Makes sense since those are reversible, which suggests that the reversing might
happen gradually in storage, similar to the way that NVRAM (flash memory) gradually fades
which OTP ROMs tend to last forever unless they have a process defect.
Paul
I know the first generation CD/DVD disc are known to "go bad" - the
material itself somehow degrades and becomes unreadable by modern drives.
I'm not sure if that's still the case with newer or more modern CD/DVD disc
(not just that they're newer, but are they a more durable material or
casing?)
Choosing the right blanks made a world of difference. The as I said recently, all the
Verbatim DataLifePlus I’ve tried to recovered have been fine. The main data I lost was
stored on a DVD-R blank from another manufacturer.
I’m now looking at switching to Verbatim M-Disc’s.
As part of my recent efforts I’ve regained access to data that while live on spinning
disk, had become corrupted sometime between 1997 and 1999.
Zane