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Do CDs have a lifespan?
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Localsky
IsraTrance Junior Member
Started Topics :
16
Posts :
117
Posted : May 13, 2004 22:15
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I hope this is not off topic but I didn’t know where else to post it. Do CDs have a lifespan? I once heard CDs only like 15-20 years. Does anyone know if this is true?
  my cat is deathly afraid of aluminum foil |
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medir
Inactive User
Started Topics :
113
Posts :
1193
Posted : May 13, 2004 22:34
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...some have a livespan of just a view years...( ...or even less...).
a cd ( not cdr ) have for shure more than 25 years...
bomski
experiment !
make it your motto day and night.
experiment,
and it will lead you to the light.
the apple on the top of the tree
is never too high to achieve,
so take an example from eve...
experiment ! |
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saxopholus
Started Topics :
0
Posts :
79
Posted : May 14, 2004 01:11
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medir
Inactive User
Started Topics :
113
Posts :
1193
Posted : May 14, 2004 08:50
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this point i like:
"Just be careful with crucial data, use good quality media, and store and treat it correctly."
however...i ve got cdr's ( on which audio is recorded, so they re in "heavy-use" ) which are from '96 n are running perfect. on the other hand i ve got cdr's which after less than 1 year the data was gone to neverland...
so if u got important data on it, better get a 2nd one/redundant from a different manufac...
bomski
experiment !
make it your motto day and night.
experiment,
and it will lead you to the light.
the apple on the top of the tree
is never too high to achieve,
so take an example from eve...
experiment ! |
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Localsky
IsraTrance Junior Member
Started Topics :
16
Posts :
117
Posted : May 18, 2004 08:17
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Thanks for the help. I appreciate it. 
my cat is deathly afraid of aluminum foil |
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zooter
IsraTrance Junior Member
Started Topics :
44
Posts :
771
Posted : May 18, 2004 08:35
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another important point to note:
The top of the cd is most sensitive. People make the mistake that the bottom (recorded surface) has to be carefully preserved. But the truth is, the aluminium on top can easily get "chipped" and damage the contents of the cd. The bottom can take scratches and if your reader has enough error correction, it will survive.
Bottom line : use backups on different media's, hdd of friend, cd-r etc.
hope this helps |
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Amygdala
Amygdala
Started Topics :
12
Posts :
175
Posted : May 18, 2004 10:19
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Just a slightly irrelevant fact I picked up... Some extrapolation algorithms in expensive CD-players, can actually reconstruct the signal from the CD, even if some areas are unreadable. Some reconstruction algorithms allow you to drill a 5 mm circular hole in the disc - put in in your CD-player, and you won't notice a thing... Of course, you should not put the whole near the center where the toc and other information is, but somewhere in the middle of the data surface...
I find that incredible
-Amygdala |
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