I have a
large number of e-mails relating to LF activity and wish to store them
offline. Does anybody have any information on how long a CD-ROM should
remain readable?
Hi John
I'm sure if I say indefinitely someone will tell me I'm wrong
but I suspect for most practical purposes, given a properly burned CD in
the first place, that's probably about it.
I have music CDs 20 years old and still fine, commercial data CDs of
similar age, and home cut data CDRs of at least 5 years.
There was talk once of earlier CDs having limited lifespan, due to supposed
problems with the magnetic coating in use at the time, but I can also remember
back in the 70s being told that Eproms would never retain their data for more
than 10 years and many of those are still going strong after 30.
Even if you don't go for "indefinite" an estimate of 10 or 20 years minimum
should be quite reasonable.
regards
Nigel
G8PZR
