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Experimental Data on DVD Longevity

General discussion about recordable CD, DVD and BD media and write quality testing.

Postby longevity-freak on Fri Jun 16, 2006 12:10 am

There are some minor issues in viewing the latest version (15 June 2006) of the e-books with Adobe Reader 6.0 and 7.0.

In some PDF files, Adobe Reader will report "A drawing error occurred.".

You may want to try the FREE Foxit PDF Reader 1.3. I have tested it and there should not be any problems in viewing the PDF files.

To download the Foxit PDF Reader, click on the following link:

http://www.foxitsoftware.com/download.htm
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Postby longevity-freak on Sat Jun 17, 2006 8:02 am

Relative humidity reading at 3.20 PM on 17 June 2006 using a digital hygrometer. Relative humidity is 77%.
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Postby longevity-freak on Wed Jun 28, 2006 2:47 am

Even though Taiyo Yuden DVD writeable discs are widely acclaimed to be the best, they do degrade as well.

I have monitored two Taiyo Yuden-based DVD recordable discs over the months and the test results show that error rates on these discs increase.

For test results, please refer to the following link:

http://forums.hardwarezone.com/showthre ... e=68&pp=15
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Postby longevity-freak on Wed Jul 12, 2006 4:38 pm

PIE/PIF disc quality scanning done on SUSE Linux 10.1 using QPxTool 0.5.3. QPxTool scans are compared against Nero CD-DVD Speed scans on a Benq 1640.

To see the scans, go to:

http://forums.hardwarezone.com/showthre ... st19345544
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Postby Scour on Wed Jul 12, 2006 4:48 pm

When TY is also not good in stability, which media should I buy when I wnat to have readable media in a few years?
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Postby dolphinius_rex on Wed Jul 12, 2006 10:46 pm

Scour wrote:When TY is also not good in stability, which media should I buy when I wnat to have readable media in a few years?


Maxell's Japanese media seems to hold up QUITE well in my previous tests.
Punch Cards -> Paper Tape -> Tape Drive -> 8" Floppy Diskette -> 5 1/4" Floppy Diskette -> 3 1/2" "Flippy" Diskette -> CD-R -> DVD±R -> BD-R

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Postby RJW on Fri Jul 14, 2006 4:01 am

Interesting post.

http://forums.hardwarezone.com/showpost ... count=1009

The Errors seem rise faster from the inner which is inline with TY's bonding problems.
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Postby dolphinius_rex on Fri Jul 14, 2006 10:19 am

RJW wrote:Interesting post.

http://forums.hardwarezone.com/showpost ... count=1009

The Errors seem rise faster from the inner which is inline with TY's bonding problems.


And yet that's PIE only... the PIF seem to be along the outer edge where bonding problems are less likely (although I've seen it!).
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Postby Scour on Fri Jul 14, 2006 11:37 am

dolphinius_rex wrote:
Maxell's Japanese media seems to hold up QUITE well in my previous tests.


I remember that u said that Maxell have poor bonding, only one serie from Maxell is good?
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Postby dolphinius_rex on Fri Jul 14, 2006 11:57 am

Scour wrote:
dolphinius_rex wrote:
Maxell's Japanese media seems to hold up QUITE well in my previous tests.


I remember that u said that Maxell have poor bonding, only one serie from Maxell is good?


So far even poorly bonded Maxell are holding up well! Especially when compared to that TY disc just linked to (or any TY disc in my own longevity studies) :o

I have a spindle of VERY poorly bonded Maxell 8x DVD+Rs (made in Japan), so I'll be conducting some tests on them with regard to lifespan :wink:
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Postby Scour on Fri Jul 14, 2006 6:55 pm

I have some MXL RG03, have u experinces with this media?

ATM it´s hard to get original Maxell media, most are Ritek/Ricoh
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Postby dolphinius_rex on Fri Jul 14, 2006 7:39 pm

Scour wrote:I have some MXL RG03, have u experinces with this media?

ATM it´s hard to get original Maxell media, most are Ritek/Ricoh


Yeah, I have some consumer MXLRG03 as well... the bonding isn't that great on it either, but it's less consistantly bad then MAXELL002. My Maxell Plus Series MXLRG03 is generally better bonded though.
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Postby Scour on Fri Jul 14, 2006 8:15 pm

Never saw this Plus series here
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Postby [buck] on Fri Jul 14, 2006 8:22 pm

Scour wrote:Never saw this Plus series here

It's a North American Professional/Industrial product that's usually only available from P/I dealers. I think Europe has similar higher grade offerings too, but they're probably quite expensive and hard to find.
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Postby Scour on Fri Jul 14, 2006 9:58 pm

Yes, really hard to find
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Postby RJW on Sat Jul 15, 2006 10:07 am

Higher grade maxell in europe are sold as
Maxell extreme Protec (pro performance series)

Which can be bougth at feurio. (Great assortiment but high prices )
+R
http://www.feurio.de/feurio-cgi/shop2.f ... 81263#4135
-R
http://www.feurio.de/feurio-cgi/shop2.f ... 81265#4134
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Postby [buck] on Sat Jul 15, 2006 5:52 pm

RJW wrote:Higher grade maxell in europe are sold as
Maxell extreme Protec (pro performance series)

Which can be bougth at feurio. (Great assortiment but high prices )
+R
http://www.feurio.de/feurio-cgi/shop2.f ... 81263#4135
-R
http://www.feurio.de/feurio-cgi/shop2.f ... 81265#4134

Don't forget those also have Maxell's hardcoat (much like Amour Plated/Scratchproof TDK), which makes them at least loosely equivalent to the "Broadcast Quality" line sold in North America that cost ~$2.
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Postby longevity-freak on Mon Jul 17, 2006 5:33 am

Scour wrote:When TY is also not good in stability, which media should I buy when I wnat to have readable media in a few years?


My purpose in showing the disc quality scans over the months is to demonstrate that taiyo yuden DVDs, Supposedly the best brand, do degrade over time. Knowing degradation will occur will prevent consumers from having Over-confidence, and hence they will not check their dvd media from time to time.

To be fair, taiyo yudens don't degrade as fast as some of the other brands I have. I have Imation dvds that Failed in only 2-3 weeks! So far the taiyo yudens can hold out for almost one year in high humidity. But I can'T say so for 2-3-4 years because the age of my taiyo yudens haven't reached that stage yet. If you care to take good care of your discs, they should survive longer.
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Postby longevity-freak on Mon Jul 17, 2006 5:38 am

To see more disc quality scans, go to page 69 of the Knowledge Base.

Link to Page 69 of KB
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Postby longevity-freak on Fri Jul 28, 2006 11:13 am

Check out the latest Taiyo Yuden 16X DVD-R PIE/PIF scans:

http://forums.hardwarezone.com/showthre ... o=lastpost
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Postby Scour on Fri Jul 28, 2006 11:26 am

POF with TY :o

Not nice
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Postby dolphinius_rex on Fri Jul 28, 2006 11:52 am

Yeah, Taiyo Yuden has been going downhill since they started making DVDRs. The lifespan on their 4x and 8x media was suspect, but by the time their 16x media came out, the quality was so poor that it's hard to even THINK about the lifespan. Their latest effort (DVD-RDL), the TYG11 is one of the worst DVDRDL discs on the market (not as bad as Prodisc's DVD+RDL, but not much better then Ritek's DVD+RDL!).
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Postby Scour on Fri Jul 28, 2006 2:48 pm

But I remember taht the TYG03 had a very good stability result in the c´t-review

Is the TYG11 good supported by the actual writers?
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Postby [buck] on Sat Jul 29, 2006 5:10 am

Scour wrote:But I remember taht the TYG03 had a very good stability result in the c´t-review

Is the TYG11 good supported by the actual writers?

Unless I'm looking at the wrong post, I don't think C't tested any TY media other than TYG02 and YUDEN000T02 #-o
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Postby Scour on Sat Jul 29, 2006 5:59 am

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