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afterdawn.com > forums > dvd±r discussion > dvd±r media > will dvd media lose info after only 2 years?
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Will DVD Media lose info after only 2 years?
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Digibop
Junior Member
_ 		27. April 2004 @ 14:30 _ Link to this message    Send private message to this user   
Pretty interesting info here.

Hello Again All,

I was browsing around a digital camera website when I found the following link.

http://media.fastclick.net/w/get.media?sid=9388&m=5&url=http%3A//news.independent.co.uk/world/science_technology/story.jsp%3Fstory%3D513486

It tells how CD-Rs and even DVD+/-Rs lose data after just a couple of years.

A lot of CD-R and DVD+/-R companies boast lifetimes of 100 years, but this researcher disagrees.

Anyone got a thought about this?

And by the way, I always buy quality media.

Why waste your time with junk.

I have used Verbtim and Fuji in the past and have never been disappointed.

Hope this helps.

Steve
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Oriphus
AfterDawn Addict
_ 		28. April 2004 @ 15:44 _ Link to this message    Send private message to this user   
Yes and no, cheap crappy discs may loose their information in a short life span, but the reality is that many quality brands will have data retaintion for around 50 years +
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For your DVD needs http://www.dvd-and-media.com
http://www.dvd-backup.tk
For User Guides/Downloads: http://www.chrismccann.co.uk/user_guides.htm

RomReader
Newbie
_ 		29. April 2004 @ 15:14 _ Link to this message    Send private message to this user   
I am curious where the media goes once it has been branded to the medium. I can understand scratches and stuff like that but do they mean it will just disappear even if kept it a cool dry place in its original box etc.
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Good thread regarding the proper procedures for burning and backing up your PS2 games.
http://forums.afterdawn.com/thread_view.cfm/81776
Oriphus
AfterDawn Addict
_ 		30. April 2004 @ 05:22 _ Link to this message    Send private message to this user   
Media is created using an Organic dye. The dye simply breaks down. Try and keep the discs away from extreme temperatures and direct sunlight to preserve life expectancy
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For your DVD needs http://www.dvd-and-media.com
http://www.dvd-backup.tk
For User Guides/Downloads: http://www.chrismccann.co.uk/user_guides.htm

ogryzek
Member
_ 		30. April 2004 @ 20:34 _ Link to this message    Send private message to this user   
I am doing regular backups for an engineering office. Of course I dump to DS4 tapes, but in our case some archival data needs to be off the server, yet nearly on-line. Have been using CD-Rs extensively (probably 100/week) over last 7 years. I can attest that typical lifespan of an average disk is nowhere near the advertised specs.

Most often polycarbonate substrate gets 'milky' (overall) or 'cloudy' in smaller spots. Than I had cases where it looked like the dye + aluminum layer separated (usually in tiny little bumps) from the base plastic layer. And than I had some cases where the disk looked perfect in every way, yet I was unable to retrieve data.

Brands while matter, I had some bad Tayo Yuden and TDK batches. Some bad luck with CMC no name blanks.
Probably the most consistent were Kodak (not being made any more) disks.

I would assume that your garden variety CD-R should survive between 3 to 5 years, even when stored properly. After that your fail rate should accelerate.
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Oriphus
AfterDawn Addict
_ 		1. May 2004 @ 07:54 _ Link to this message    Send private message to this user   
Yes, though it all does really depend on the quality of the discs you are using. I bought a high quality TDK discs a few years back and recorded onto it - it still works fine.

About a year ago i used a Vivistar disc to back up a program and this month its virtually stopped working...
[ + quote]
For your DVD needs http://www.dvd-and-media.com
http://www.dvd-backup.tk
For User Guides/Downloads: http://www.chrismccann.co.uk/user_guides.htm

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