Friday, October 31, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
Panasonic Raises Profit Outlook
Toshiba Offers New 4TB and 5TB Desktop HDDs
Samsung Introduces New Ultra Slim Galaxy A5 and Galaxy A3 Smartphones For The Chinese Market
Sharp 2Q Profit Slides
PlayStation 4 Sales Sustain Sony's Quarterly Loss
MSI Debuts The GT80 Titan Gaming Notebook With Mechanical Keyboard
Sharp To Produce New Backlight-free LCD Panel For Wearables
New Cameras Boost GoPro's Quarterly Profit
Active Discussions
DVD/DL for Optiarc 7191S at 8X
Copied dvd's say blank in computer only
Made video, won't play back easily
New Features In Firefox 33
updated tests for dvd and cd burners
How to generate lots of different CDs quickly
Yamaha CRW-F1UX
help questions structure DVDR
 Home > News > Optical Storage > BD-R LT...
Last 7 Days News : SU MO TU WE TH FR SA All News

Thursday, October 11, 2012
BD-R LTH Discs More Susceptible To Degradation: report


Blu-ray Low-To-High (LtH) discs are not recommended for data archiving as they are aging faster than the traditional Blu-ray (HtL) discs, a recent study found.

The Laboratoire National de Metrologie et d'Essais (LNE), a French metrology laboratory, conducted a study on behalf of the French ministry of Culture, Direction des archives de France (DAF), in order to examine the reliability of the BD-R LTE discs when used for long-term data archiving.

LNE used a number of Blu-ray recordable LTH and HTL discs by Sony (SONY NN3 002), Verbatim (VERBATIMe 000 and VERBATIMu 000), Maxell (RITEK BR2 000), JVC (TYG-BD Y03 001) and Panasonic (MEI T02 001).

The discs were recorded using burners from Lite-On (iHBS 112-37 v2CL04), Plextor (PX-LB950SA v1.06), Buffalo (BR-X 816U2 vEL00), LG (BD-RE BE12LU30 v4261), Pioneer (BDR-206 BK v1.04) and Sony (BD5300S v1.04) and at different recording speeds. The discs were analyzed (RSER measurements) using a Blu-ray Analyzer provided by Expert Magnetics.

The laboratory put the discs in accelerated aging tests, exposed under specific temperature and relative humidity conditions (incubation at 80 degrees C / 80% RH) as well as under exposure to irradiation.

The very interesting results showed that the overall quality of recorded BDR-LTH is inferior to BD-RT HTL. As a result, the French laboratory does not recommend using BDR-LTH discs for long term data archiving, as the ageing acceleration tests showed that they are more sensitive to light even compared to DVD±Rs, while the BD-R HTL discs could be considered as substantially insensitive to light.

Among the BD burners used for the test, the Pioneer 206BK drive gave the best burning quality, according to the report, with the Buffalo BR-X 816U2 and the LG BD-RE BE12LU30 drives to follow.

With these burners, the Panasonic BD-R HTL (MEI T02 (001)) was the most reliable disc when recorded at 4x or 6x.

Sony's BD-R HTL disc (SONY NN3 (002)) disc was also reliable enough when burned with the Pioneer 206BK drive at 6x, the study found.

Under the incubation conditions at 80 degrees C / 80% RH, the various media of the test had the following behavior:

Panasonic's BD-R HTL was reliable for a period of 2000 hours. After that point, some local defects appeared that could possibly cause read errors.

Sony's BD-R HTL also behaved well, with an acceptable error rate even after 1750 hours of incubation. The data error rate was rapidly growing after that point.

Maxell's HTL BD-R was in good condition for a period of 500 hours of incubation. After that point, the error rate was increased for the entire disc, and the discs' cover layer was detached in specific areas.

Data stored on Verbatim's HTL BD-Rs was in good shape for a period of 250 hours of incubation. After than point, uncorrectable data errors occurred.

Verbatim's LTH BD-R showed serious degradation and uncorrectable errors after 250 hours of incubation. However, the discs could be still be analyzed after 750 hours of steaming.

Finally JVC LTH BD-Rs returned uncorrectable data errors after 250 hours of incubation, with disc degradation to be visible even with naked eye.

The complete report is available in French here.


Previous
Next
Softbank Also Eyes Buying MetroPCS: report        All News        Appeals Court Cancels Galaxy Nexus Sales Ban
Pioneer BDR-208XJ BDXL Burner Supports 15x BD Recording     Optical Storage News      Multi-layer Optical Disc To Store Terabytes Of Data

Get RSS feed Easy Print E-Mail this Message

Related News
Microsoft Introduces The Microsoft Health And Band
Pioneer Introduces New High-end Blu-ray Players At CEDIA
Blu-ray Discs For 4K Content And 4K Players Coming Next Year
New BD-DSD Blu-ray Disc Standard Allows Storing 200GB Of Data Per Disc
Optical Disc Sales Down
DVD And Blu-ray Discs Remain Popular in Britain
Blu-ray Disc Format Moving From Consumers To Professionals
Pioneer BDP-170 Blu-ray Disc Player Comes With Wi-Fi, Miracast And Youtube Connectivity
Sony And Panasonic Create New "Archival Disc" 300GB Optical Disc Standard
DVD And Blu-ray Discs Remain Preferred Sources of Video Content
TOSHIBA 2014 Symbio Streaming And Disc Players Coming in Q1
Samsung Says 4K Content Will Be Distributed In 125GB Blu-ray Disks

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .