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

Chuck Guzis cclist at
Sun Jul 22 10:52:55 CDT 2018

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> 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.


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