> On Jan 31, 2023, at 2:19 PM, Paul Koning <paulkon...@comcast.net> wrote:
>
>
>
>> On Jan 31, 2023, at 5:03 PM, Zane Healy via cctalk <cctalk@classiccmp.org>
>> wrote:
>>
>> On Jan 31, 2023, at 10:22 AM, Steve Lewis via cctalk <cctalk@classiccmp.org>
>> wrote:
>>>
>>> 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
>
> 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 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
