BD-R/RE DiscsBlu-ray by Panasonic

Blu-ray Disc Line-up

Wide Product Line-up
Panasonic Blu-ray Discs come in 25 GB+ and 50 GB+ capacities in both recordable and rewritable types.

1x to 4x Speed Recordable / The world's first* Blu-ray Disc with 4x recording speed. * As of July 3, 2007


50 GB+ BD-R (Single sided/Dual-layer) LM-BR50LDE <Hard Coating>25 GB+ BD-R (Single sided/Single-layer) LM-BR25LDE <Hard Coating>

More than approximately 1 million consecutive writing cycles and 50 years of saving durability.**
**Saving capability measured at 25°C with 50% humidity.
Titles and other information can be written onto the disc surface with an oil-based pen.

1-4x BD-R (spec)
Format Name Blu-ray Disc recordable Format Ver.1.2
Model Number LM-BR50LDE LM-BR25LDE
Data Capacity 50GB 25GB
Layer Constitution Single sided/Dual layer Single sided/Single layer
Recording Format Phase Change Recordable 
Laser Wavelength 405nm (Blue-violet Laser) 
Objective Lens Numerical Aperture (NA) 0.85 
Disc Diameter/Thickness 120mm x 1.2mm 
Track Pitch 0.32μm 
Minimum Mark Length 0.149μm 
Data Transfer Rate 36 Mbps (1x)/144 Mbps (4x)
Hard Coating Yes

1x to 2x Speed Rewritable / Highly reliable data rewriting due to Hard Coat technology.


50 GB+ BD-RE (Single sided/Dual-layer) LM-BE50DE <Hard Coating>25 GB+ BD-R (Single sided/Single-layer) LM-BE25DE <Hard Coating>

Data can be rewritten approximately 1,000 times.

1-2x BD-RE (spec)
Format Name Blu-ray Disc recordable Format Ver.2.1
Model Number LM-BE50DE LM-BE25DE
Data Capacity 50GB 25GB
Layer Constitution Single sided/Dual layer Single sided/Single layer
Recording Format Phase Change Recordable
Laser Wavelength 405nm (Blue-violet Laser)
Objective Lens Numerical Aperture (NA) 0.85
Disc Diameter/Thickness 120mm x 1.2mm
Track Pitch 0.32μm
Minimum Mark Length 0.149μm
Data Transfer Rate 36 Mbps (1x)/72 Mbps (2x)
Hard Coating Yes

+ The capacity of Blu-ray discs is expressed in units of 1 GB=1 billion bytes, but the capacity is slightly below that after formatting, so that the actual amount area that can be used will be less.


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