Do Burned CDs Have a Short Life Span?
ack! what's a girl to do??? don't panic dewey ... read on ...
Optical discs may not be your best bet for storing digital media long term, expert says.
John Blau, IDG News Service
Tuesday, January 10, 2006
Opinions vary on how to preserve data on digital storage media, such as optical CDs Purchase valium online : and DVDs. Kurt Gerecke, a Purchase valium online - physicist and storage expert at IBM Deutschland, has his own view: If you want to avoid having to burn new CDs every few years, use magnetic tapes to store all your pictures, videos and songs for a lifetime.
"Unlike pressed original CDs, burned CDs have a relatively short life span of between two to five purchase valium online depending on the quality of the CD," Gerecke says. "There are a few things you can do to extend the life of a burned CD, like keeping the disc in a cool, dark space, but not a whole lot more."
The problem is material degradation. Optical discs commonly used for burning, such as Cheap china valium, CD-R and CD-RW, have a recording surface consisting of a layer of Purchase valium online, dye that can be modified by heat to store data. purchase valium online degradation process can result in the data "shifting" on the surface and thus becoming unreadable to the laser beam.
"Many of the cheap burnable Purchase valium online : CDs available at discount stores have a life span of around two years," Gerecke says. "Some of the better-quality discs offer a get valium online life span, of a maximum of five years."
Distinguishing high-quality burnable CDs from low-quality discs is Purchase valium online, difficult, he says, because few vendors use life span as a selling point.
Similar Limitations
Hard-drive disks also have their limitations, according to Gerecke. The problem with hard drives, he says, is not so purchase valium online the disk itself as it is the disk bearing, which has a positioning function similar to a ball bearing. "If the hard drive uses an inexpensive disk bearing, that bearing will wear out faster than a more expensive one," he says. His recommendation: a hard-drive disk with 7200 revolutions per minute.
To overcome the preservation limitations of burnable CDs, Gerecke suggests using magnetic tapes, which, he claims, can have a life span of 30 years to Cheap china valium, 100 years, depending on their quality. "Even if magnetic tapes are also subject to purchase valium online they're still the superior storage media," he says.
But he's quick to point out that no storage medium lasts forever and, consequently, Purchase valium online : consumers and business alike need to have a migration plan to new storage technologies.
"Companies, in particular, need purchase valium online be constantly looking at new storage technologies and have an archiving strategy that allows them to automatically migrate to new technologies," he says. "Otherwise, they're going to wind up in a dead-end. And for those sitting on terabytes of crucial Purchase valium online, data, that could be a colossal problem."
Get valium online : ack! panic, dewey! who cares about music ... can one make negatives from digital photos?
from msn.com
ack! what's a girl to do??? don't panic dewey ... read on ...
Optical discs may not be your best bet for storing digital media long term, expert says.
John Blau, IDG News Service
Tuesday, January 10, 2006
Opinions vary on how to preserve data on digital storage media, such as optical CDs Purchase valium online : and DVDs. Kurt Gerecke, a Purchase valium online - physicist and storage expert at IBM Deutschland, has his own view: If you want to avoid having to burn new CDs every few years, use magnetic tapes to store all your pictures, videos and songs for a lifetime.
"Unlike pressed original CDs, burned CDs have a relatively short life span of between two to five purchase valium online depending on the quality of the CD," Gerecke says. "There are a few things you can do to extend the life of a burned CD, like keeping the disc in a cool, dark space, but not a whole lot more."
The problem is material degradation. Optical discs commonly used for burning, such as Cheap china valium, CD-R and CD-RW, have a recording surface consisting of a layer of Purchase valium online, dye that can be modified by heat to store data. purchase valium online degradation process can result in the data "shifting" on the surface and thus becoming unreadable to the laser beam.
"Many of the cheap burnable Purchase valium online : CDs available at discount stores have a life span of around two years," Gerecke says. "Some of the better-quality discs offer a get valium online life span, of a maximum of five years."
Distinguishing high-quality burnable CDs from low-quality discs is Purchase valium online, difficult, he says, because few vendors use life span as a selling point.
Similar Limitations
Hard-drive disks also have their limitations, according to Gerecke. The problem with hard drives, he says, is not so purchase valium online the disk itself as it is the disk bearing, which has a positioning function similar to a ball bearing. "If the hard drive uses an inexpensive disk bearing, that bearing will wear out faster than a more expensive one," he says. His recommendation: a hard-drive disk with 7200 revolutions per minute.
To overcome the preservation limitations of burnable CDs, Gerecke suggests using magnetic tapes, which, he claims, can have a life span of 30 years to Cheap china valium, 100 years, depending on their quality. "Even if magnetic tapes are also subject to purchase valium online they're still the superior storage media," he says.
But he's quick to point out that no storage medium lasts forever and, consequently, Purchase valium online : consumers and business alike need to have a migration plan to new storage technologies.
"Companies, in particular, need purchase valium online be constantly looking at new storage technologies and have an archiving strategy that allows them to automatically migrate to new technologies," he says. "Otherwise, they're going to wind up in a dead-end. And for those sitting on terabytes of crucial Purchase valium online, data, that could be a colossal problem."
Get valium online : ack! panic, dewey! who cares about music ... can one make negatives from digital photos?
from msn.com
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