* Re[2]: [9fans] writable optical media
@ 2001-09-19 9:12 Patric.Keller
2001-09-19 10:28 ` Boyd Roberts
0 siblings, 1 reply; 2+ messages in thread
From: Patric.Keller @ 2001-09-19 9:12 UTC (permalink / raw)
To: 9fans
> i think the quoted medi life for pre-preinter silver disks
> (pre-pressed cd roms) is around 10 years.
>
> "golds" is somewhat less
>
> photons wear them out so keep them in a dark lead cupboard
>
> TDK quotes > 10^8 reads for 128Mb MO disks
>
> they don't show figures for cd roms
>
some weeks ago i wanted to have a look at an old project i did
two years ago. so i got the cd rom out of the archive - only to
discover that it was _completely_ transparent! The golden
reflection layer was history... and so were some more projects
i stored on other cd roms at about the same time...
boy, did i cry.
but i'm sure that this was only a certain batch of cd roms.
anyway, it taught me that it's a good idea to check your
back-ups from time to time...
pat
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* Re: Re[2]: [9fans] writable optical media
2001-09-19 9:12 Re[2]: [9fans] writable optical media Patric.Keller
@ 2001-09-19 10:28 ` Boyd Roberts
0 siblings, 0 replies; 2+ messages in thread
From: Boyd Roberts @ 2001-09-19 10:28 UTC (permalink / raw)
To: 9fans
> some weeks ago i wanted to have a look at an old project i did
> two years ago. so i got the cd rom out of the archive - only to
> discover that it was _completely_ transparent! The golden
> reflection layer was history... and so were some more projects
why do you think they were using gold? err, marketing ...
i have, as many others do, 10+ year old audio cd's that read fine.
i even have a dvd that has a 1cm square seriously scratched area
(it arrived liked that) and even it plays.
no, i didn't send it back, because it reads and getting a replacement
in france is an invitation for another argument etc ...
> ----------------------------------------------------------------------
> The contents of this communication are confidential to the normal user of
> the email address to which it was sent. If you have received this email
> in error, any use, dissemination, forwarding, printing or copying of this
> email is strictly prohibited. If this is the case, please notify the
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why do boneheaded companies insist on doing this? given i _have_ the
message, isn't it a bit late? motion to supress? get a grip.
oh god, i think i've just violated sentence 2, so prosecute me.
can i notify the sender, including the message, _without_ violating
sentence 2? how will the sender know what the message is if i don't
forward it?
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2001-09-19 9:12 Re[2]: [9fans] writable optical media Patric.Keller
2001-09-19 10:28 ` Boyd Roberts
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