[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [ARSCLIST] Recommended CD-R's (and risks associated with their use)
Sorry for re-iterating, but if you've read the
UNESCO paper several postings have already
"Risks Associated with the Use of Recordable CDs
and DVDs as Reliable Storage Media in Archival
Collections - Strategies and Alternatives", by
Kevin Bradley (can be downloaded from
http://portal.unesco.org/ci/en, search for the
you would realise that there is no good CD-R's
without a good CD-R burner. And contrary to
disks, burners don't have any standards to comply
with as long as they burn disks. To establish
some sort of baseline for burners , they have to
be individually calibrated against a known
entity, and such known entities cost a lot of
money. Burned disks also need to be measured for
error levels, since a low level from the start
means a longer life expectancy.
Hence, to summarise the paper - if you can't
afford to have your burner calibrated, you can't
afford long term storage on optical disks (access
copies is a whole different matter).
Centre for Swedish Folk Music and Jazz Research
Among archivists (whose main concern is
long-term survivability), Mitisui (MAM-A) Gold
CDs are generally preferred, if not standard.
They're usually used as a back-up to a hard
drive system, and best practice dictates to
store them something like 50 miles away from the
hard drive. I recently bought a ton, and I
found that (a) prices vary a lot, so shop
around, both among 'archival' supply companies
and audio suppliers; and (b) it pays to buy
un-boxed, and purchase jewel cases separately
(incidentally, full-size jewel cases are also
often preferred for long-term storage; stay away
from the slim cases, and most sleeves).
And, as people have said, nix on the paper
labels if your major concern is longevity.