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CD media that lasts longer than 2 years
Posted on Friday, January 20 @ 14:40:19 PST by Red
Technology Those crappy bargain-bin cds you see for sale at Office Max are just that: crappy.

Over time, any CD-R will degrade to the point where the data becomes unreadable. Since consumer CD (and DVD) writers use heat to write data, exposure to heat (hence the term burner) will royally fuck up your CDs. That means don't leave burned cds in your car!

(Some people say cheap cds will degrade anywhere between 1-20 years...and it all depends on who you ask and what brand & type of media you're talking about.)

How crappy would that be? You back up your precious digital camera photos which are irreplaceable, only to find out in a couple of years they're lost forever? That would be awful.

There's a way you can avoid this, though.

Click read more to read on...

So...how do you make sure you use the right media? You've got two options...you can research it yourself (and there are a ton of resources online) or you can just read my condensed version of a resource I found. The site I'm citing is http://alcor.concordia.ca/~talfred/cd-r.html, which cites www.cdmediaworld.com and www.silverace.com as sources. It's a pretty good primer for those new to the different kinds of recordable cd media out there. If you've got the time, visit the site and educate yourself.

Ok, onto the important stuff. Basically, there are three different types of dye used in cds. In descending order of quality, they are:

1. Phthalocyanine
2. Azo
3. Cyanine

1. Phthalocyanine will last 200 years when combined with gold reflective layers. Please note: they can be combined with silver layers too (like the brand I'm buying right now...see the end of this post for details).

2. Azo will last 100 years. They can be identified by their silver reflective surface. To quote the site, "only Mitsubishi/Verbatim makes this."

3. Cyanine is unstable...these are the kinds of cds you see in most stores. They tend to be green/blue.

Now...it's just my opinion, but the best and most cost-efficient cds have a silver reflective surface. You probably won't need the gold surface cds unless you don't care about the money and really want your stuff to be around in the year 2206.

Here's the site's top list of brand names (which I agree with):

A. Mitsui Gold CD-R & Kodak Gold Ultima - Phthalocyanine dye + Gold.
B. Kodak Gold Silver+Gold - Phthalocyanine dye + Silver & Gold.
C. Mitsui Silver, Ricoh Platinum - Phthalocyanine dye + Silver.
D. Mitsubishi/Verbatim - Azo + Silver.
E. Taiyo Yuden - Cyanine + Silver.

What am I buying? I'm buying the Mitsui/MAM-A silver CD-Rs. The 80 minute/700 MB ones come in packs of 100 and retail for $53 on Amazon.com. Says here they will last a century. They are more expensive than the 100 packs that go for $10-15, but isn't it worth the price?

Hey, it's your data.

Re: CD media that lasts longer than 2 years (Score: 1)
by Raul on Saturday, January 21 @ 15:19:49 PST
(User Info | Send a Message) http://www.tokenasians.com
Hmmm, is there a more comprehensive list anywhere?



Re: CD media that lasts longer than 2 years (Score: 1)
by Red on Monday, January 23 @ 07:17:40 PST
(User Info | Send a Message)
None that I know of. If you do see one, feel free to post here.


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