how good is the data reliability with CD ROM and DVD RAM?

[Carlo Pisani]

thus DDS4, LTO2, DLT: which is the best tape?

2018-07-22 18:11 GMT+02:00 Jon Elson via cctalk <cctalk at classiccmp.org>:
> On 07/22/2018 10:52 AM, Chuck Guzis via cctalk wrote:
>>
>> On 07/22/2018 06:33 AM, Paul Koning via cctalk wrote:
>>>
>>>
>>>> On Jul 21, 2018, at 3:25 PM, Carlo Pisani via cctalk
>>>> <cctalk at classiccmp.org> wrote:
>>>>
>>>> ...
>>>> and what about magnetic-tapes? (e.g. DDS4, DLT, LTO2)
>>>>
>>>> which of them lasts for the most?
>>>
>>> I don't know specifically.  I do know that plain old audio tapes may fail
>>> -- I have perhaps 100 cassettes recorded in the 1970s.  Most of them are
>>> fine, but essentially all of them that are Fuji brand have failed utterly.
>>
>> Half-inch open-reel tape at 1600 PE density.  Should be good for 50
>> years at least.
>>
>>
> Well, you are one of the experts in this, but it all depends on storage
> conditions.  Also, the extended-length tapes were too thin, and suffered
> from creasing and print-through.  Badly stored, and you can kiss your data
> goodbye in less than 5 years.
>
> Jon