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198.24.6.135
Literally.
Experience is a dim lamp, which only lights the one who bears it.
--Celine
Follow Ups:
Super Audio 8 Track tape should have been then there never would have been CD!
Or was that the red M&M's?
The world's most important data are not archived on disk or optical media. The Library of Congress uses enterprise class data tapes and massive tape libraries from StorageTek.
Tape and Disk Lifecycle Considerations:
- Max Shelf Life (bit rot): Disk ~10 years / Tape ~30 years.
- Best practices for Data Migration to new technology: Disk 3-5 years / Tape 8-12 years.
- Uncorrected bit-error rate: Disk 1 X 10e-14 / Tape 1 X 10e-19
Power and Cooling: Disk > 200x / Tape x
decent care, I'm betting they'll last longer than I.
The Library of Congress determined that the only media that would survive as a true archival medium (lifespan measured in decades or centuries rather than years) were the LP and the stampers that made them.
All other forms of recording (analog and digital tape, CD, magnetic disk) would fail due to failure of the non-amorphous medium separating from the carrier layer (in magnetic tape this is known as 'shedding'), due to absorption of water molecules.
They determined at that time that the LP would survive in proper storage for 1 to 2 centuries due to its amorphous non-laminated nature. I have LPs in my collection that have lasted 60 years so far (monophonic Bernie Goodman) and still play fine. Only 40 years to go...
Bet he wasn't as good as Benny :-)
Bernie Grundman?
Bernie Grundman was probably in knee pants 60 years ago. No, I think he meant Benny Goodman.
Yeah, I know that. I was thinking that Ralph got the two names mixed together somehow.
have a nice 4th y'all!
Just recently started burning a lot CDs onto my PC for xfer to Ipod.I'm experiencing some rare failures on certain tracks on some old CDs. However these same CDs still play on my standalone CD player ... go figure.
All of my CD(s) have been stored in sealed cases/ climate controlled enclosures since purchase.
If you understand, things are just as they are; if you do not understand, things are just as they are.
--Zen Proverb
Edits: 07/02/14 07/02/14
Climate controlled enclosures- OCD?
*
If you understand, things are just as they are; if you do not understand, things are just as they are.
--Zen Proverb
Edits: 07/05/14
*
If you understand, things are just as they are; if you do not understand, things are just as they are.
--Zen Proverb
Phew!
How fast is your system ripping the discs? I only ask because there are some CDs that no matter how slow I get the ripper to rip, there seems to be issues with some discs, where as they play fine on my standalone player as well...
"If the audio industry built gear that sounded as good as it did 50 years ago, there would NEVER be a need to re-issued anything!"
I have no idea ... I rip to Itunes / Windows 7 & then to Ipod.
These same CD tracks that give me problems will not play on Foobar 2000 either ... maybe the CD drive on PC is not good enough for troubled tracks? ... don't know.
If you understand, things are just as they are; if you do not understand, things are just as they are.
--Zen Proverb
I'm amazed at the condition many Netflix DVDs are in when I get them. I have had my share that won't play through without issues. Do people use them as frisbees? My oldest CDs don't have marks on them from handling and they all play. I have seen people with piles of CDs in a bin without their cases, just tossed together or collections kept in cars. Why not, they're indestructible. You can't stop stupid.
I was an early adopter, and have a few from the 80's. They all play fine, even a few from the BIS label that supposedly used ink that would eat through the metal layer in time.
They did have some manufacturing issues early on, such as pin holes in the reflective layer. Back then it was routine for me to hold the disc up to a light to look for holes. They eventually solved that problem.
Jack
twenty years from now. :)
All my 30 year old CD,s still play. Yet to discover a CD that does not play.
From the article....
They cooked for about 500 hours at 175 degrees and in relative humidity of 70 percent—about what you'd expect on a sweltering July day in New York City
175 degrees in NYC....
I guess I'm fortunate it only gets to 110 in Phoenix......
> From the article....
They cooked for about 500 hours at 175 degrees and in relative humidity of 70 percent—about what you'd expect on a sweltering July day in New York City
175 degrees in NYC....
I guess I'm fortunate it only gets to 110 in Phoenix...... <
I'm further betting your average day doesn't last 500 hours, either.
I doubt any of us do that to our CD collection. Vinyl would be just a blob of goo at that temp.
Nt
.
Silly to even think readers are going to believe you because you said "True Story".
Nt
(nt)
... the pinto bean. True story.
Seems more appropriate for a small automobile to be named after a horse (see also Mustang) than after musical fruit!
(nt)
Do pinto beans have an explosive effect?
nt
"If the audio industry built gear that sounded as good as it did 50 years ago, there would NEVER be a need to re-issued anything!"
Nt
Both bodies rotted out before they even got to 100K miles.
Ironically, whereas the Mercury's engine had continuous oil and coolant leaks, the Tempo's engine (mated to a 5 speed stick) outlasted the body (and made it to well over 150k miles!).
Guess it doesn't matter what anyone buys (or in the case of the original thread, listens too), every dies...
"If the audio industry built gear that sounded as good as it did 50 years ago, there would NEVER be a need to re-issued anything!"
I have NEVER had an old CD not play.
And I play a LOT of old CD's.
"The problem with quotes from the internet is that many of them just are just made up."
-Abraham Lincoln
"I have NEVER had an old CD not play."
Same here....
I posted a big response over there...... The problem with CD playback is there are so few playback sources that bring CD to its true potential.
They are exclusively writing about CDs made by burning them and NOT about CDs manufactured with the info built into the plasic.
BIG DIFFERENCE>
It has been well known for many years that some burned CDs will last a short time, or a long time. And not many know 'why?'.
We can buy discs which some claim last. and avoid some others claim fail. But not much real known why.
I use AZO dye discs exclusively.
Edits: 07/01/14
"They are exclusively writing about CDs made by burning them and NOT about CDs manufactured with the info built into the plasic."
The article talks about both.
The data is not found in the plastic but on the aluminum inside the plastic for both factory and burnt CDs.
The difference is, with a factory cd they make a glass master that they use to stamp aluminum copies that are then placed in between plastic and the burnt ones use a laser to shape the pits into the aluminum that's already between plastic.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
.
None but that wasn't the point of my post.
I was just clarifying that the article did talk about both manufactured and burnt CDs and that the digital info is not in the plastic but on the aluminum.
Tre'
Have Fun and Enjoy the Music
"Still Working the Problem"
I've had one fail.
I can dig around and probably find it if you want more info. It was in a two disk set, a Mercury I think that I had listened to them many times when one just developed a bad spot and wouldn't play. I think it skipped or something obnoxious. But I was able to rip it to a CDR and just used that.
I think most things that go amiss with optical disks will be player sensitive, not so much due to any magic goodness in the players but rather how the defect happens to interact with the optics and tracking systems. By and large I consider them permanent and enjoy the perfect sound forever... They really are far and away the most trouble-free medium I've ever used and I've used about everything. The ones that are subpar are usually so due to the time before the pits, the recording and mastering, rather than a post-pit-plate-print-package problem.
I don't see much more moving media market in our future however, it's had it's spin.
Regards, Rick
One failure of a commercial CD. Zero failures of CDRs made on my Tascam CD recorder, but plenty of failures of CDRs I've received from other folks who created them on a computer.
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