From: Svend Olaf Mikkelsen on
On Sun, 06 Apr 2008 07:40:37 +1000, Franc Zabkar
<fzabkar(a)iinternode.on.net> wrote:

>I recently tried to read an old Quantum 120MB HD that was working fine
>when I put it away in my cupboard many years ago. Now I'm seeing a
>whole bunch of read errors.

Which BIOS or ATA error codes?
--
Svend Olaf
From: Arno Wagner on
Previously sam <sambo(a)spam.com> wrote:
> Arno Wagner <me(a)privacy.net> wrote:
>> Previously Justin <Justin(a)nobecauseihatespam.net> wrote:
>>> Al Dykes wrote:
>>
>>>>
>>>> MOD = Magneto-Optical Disk.
>>>>
>>>> This was the gold standard for archival storage when I worked at
>>>> BigBank, which was up to 1993. We had lots in storage in Iron
>>>> Mountain and online in jukeboxes the size of large refrigerators.
>>>>
>>>>
>>>> http://en.wikipedia.org/wiki/Magneto-optical_drive
>>>>
>>
>>> What about DVD-RAM?
>>
>> It looks good in teory, but in practice less so. I recently
>> bought a drive and disks. If you are really careful, they
>> should last 2-3 decades, but the disk do not have cartridges
>> (at least for the rives you can get) and one bad drop
>> could possibly be enough.

> Trivially avoidable by writing more than one copy.

Doubling effort is never trivial.

>> Unfortunately MOD technology has not been developed
>> further for some years now, and it looks like it will not be.

> Corse it wont, its WAY past its useby date.

And once again, you know nothing.

>> At the moment DVD RAM seems to be the best option
>> for small volume long-term storage. Whether it can
>> perform past the 10 year mark is not really clear to me.

> You can protect yourself against that trivially by writing
> that stuff to a hard drive too.

See above.
From: Arno Wagner on
Previously Justin <Justin(a)nobecauseihatespam.net> wrote:
> sam wrote:

>>
>> Yep, way to go IMO.
>>
>>

> Now why are DVD-RAMS better for the long term?

Because they use Phase-Change technology, which is almost as
good as MID technology.

Arno
From: Eric Gisin on
"Justin" <Justin(a)NobecauseIhatespam.net> wrote in message news:ftcadv$1p4$1(a)aioe.org...
>
> Now why are DVD-RAMS better for the long term?

They read after write to verify, automatically reallocate bad sectors.
Make sure you have two backup sets that you alternate.
From: sam on
Arno Wagner <me(a)privacy.net> wrote:
> Previously sam <sambo(a)spam.com> wrote:
>> Arno Wagner <me(a)privacy.net> wrote:
>>> Previously Justin <Justin(a)nobecauseihatespam.net> wrote:
>>>> Al Dykes wrote:
>>>
>>>>>
>>>>> MOD = Magneto-Optical Disk.
>>>>>
>>>>> This was the gold standard for archival storage when I worked at
>>>>> BigBank, which was up to 1993. We had lots in storage in Iron
>>>>> Mountain and online in jukeboxes the size of large refrigerators.
>>>>>
>>>>>
>>>>> http://en.wikipedia.org/wiki/Magneto-optical_drive
>>>>>
>>>
>>>> What about DVD-RAM?
>>>
>>> It looks good in teory, but in practice less so. I recently
>>> bought a drive and disks. If you are really careful, they
>>> should last 2-3 decades, but the disk do not have cartridges
>>> (at least for the rives you can get) and one bad drop
>>> could possibly be enough.
>
>> Trivially avoidable by writing more than one copy.
>
> Doubling effort is never trivial.

Wrong, as always.

>>> Unfortunately MOD technology has not been developed
>>> further for some years now, and it looks like it will not be.
>
>> Corse it wont, its WAY past its useby date.
>
> And once again, you know nothing.

How odd that the entire industry doesnt either.

>>> At the moment DVD RAM seems to be the best option
>>> for small volume long-term storage. Whether it can
>>> perform past the 10 year mark is not really clear to me.
>
>> You can protect yourself against that trivially by writing
>> that stuff to a hard drive too.

> See above.

Completely useless, as always from you.