Thursday, November 26, 2015
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
German ISPs May Block Music-sharing Sites: court
Study Says HTTPS Certificate and SSH Key Reuse Endangers Millions of Devices Worldwide
SK Hynix Rejects Chinese Take-over Offer
New Huawei Mate 8 Smartphone Launched With Kirin 950 Inside
Samsung's New DDR4 with TSV Gives a Boost To Data Centers and Servers
New Raspberry Pi Zero Is A $5 Tiny Computer
Panasonic's CX Ultra HD Smart TVs Bring 4K Closer To Home
New LG Ray Smartphone Focuses On Photo Shooting
Active Discussions
roxio issues with xp pro
How to back up a PS2 DL game
Copy a protected DVD?
How to burn a backup copy of The Frozen Throne
Help make DVDInfoPro better with dvdinfomantis!!!
Copied dvd's say blank in computer only
menu making
Optiarc AD-7260S review
 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.

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
Memory-Tech Ready To Start Mass Production Of UHD Blu-ray Disc
Sony Unveils First 4K Ultra HD Discs
CyberLink Joins Ultra HD Blu-Ray Development Group
U.K. Physical Media Market To Keep Falling In Q3 2015
Sharp Showcases Ultra HD Blu-ray Recorder, 8K TV at CEATEC 2015
Panasonic DMR-UBZ1 Is The World's First BD Recorder With Ultra HD Blu-ray Playback Capability
Next Generation of S Health Expands Compatibility to Other Android Devices
Licensing Ultra HD Blu-ray Format To Start This Month
Blu-ray Disc Association Completes Ultra HD Blu-ray Specification
DIGISTOR Releases New Professional Grade Blu-ray Recordable Media
Blu-ray Players Could Install Malware
4K Blu-ray Gets a Name: Ultra HD Blu-ray

Most Popular News
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2015 - All rights reserved -
Privacy policy - Contact Us .