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Details
|
|
Platform |
Capacity |
Cost per GB |
Estimated
Life (yrs) |
| CD-R/RW |
700 MB |
$0.25 |
3 - 100 |
| DVD (+)/(-) R/RW |
4.7 GB - 8.4 GB |
$0.50 |
3 - 100 |
| USB Thumb Drives |
5 GB |
$12.00 |
10+ |
| Magneto Optical |
9.1 GB |
$7.50 |
30 |
| HD DVD |
15 GB - 30 GB |
$3.00 |
10 - 100 |
| Blu Ray |
25 GB - 50 GB |
$0.75 |
10 - 100 |
| Magnetic Tape |
400 GB |
$0.25 |
30 |
| Hard Drives |
TerraBytes |
< $1.00 |
10+ |
CD's and DVD's suited
to short periods of storage use a cyanine dye polymer that gives
it a greenish tinge when held up to the light. Long-term storage
disks are created with a phthalocyanine dye polymer that gives a
disk a gold color look.
In both cases, the disks are made of plastic resins and are sensitive
to ultraviolet light. Keep your disks out of direct sunlight and
limit exposure to fluorescent lights.
Proper handling and storage of your disks will keep your data safe
and accessible for many years.
What happens
to my records if technology changes?
Good Question! Technology is changing all the time.
(See Digital Imaging)
For years, Microfilming, despite its cost, has been the primary
means of archiving old documents. Unlike microfilm, archiving
your documents in a digital format enables them to be easily
converted into new technology as it becomes available.
DVD is the next logical step. USB
thumb drives, also known as micro drives, continue to expand
their storage capacity. Current capacity is 8 GB and the
USB drive plugs into any USB port.
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