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

hollandia at hollandia at
Sun Jul 22 22:07:24 CDT 2018

Is there any relationship betwween the SPEED at which laser-disks are
written and the length of time that the recording will last?


>> On Jul 22, 2018, at 6:47 PM, Chuck Guzis via cctalk
>> <cctalk at> wrote:
>> On 07/22/2018 06:34 PM, Zane Healy via cctalk wrote:
>>> On premises has the exact same problem as tape.  You must have a
>>> refresh plan.  That’s the advantage of off prem, you don’t have to
>>> worry about refresh.
>> I don't exactly follow you.   In the case of a specific example for NASA
>> and its vendors a given mission may involve tens of thousands of tapes.
>> When a mission concludes, tapes are usually bundled off to a warehouse
>> and then later junked.   There's no money in the mission budget for
>> preservation ad perpetuum.
>> --Chuck

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