LG GGW-H20L optical disc drive Internal vs LG GGWH20L optical disc drive Internal

Comparison of GGW-H20L, GGWH20L

29 specifications	A LG GGW-H20L optical disc drive Internal Model GGW-H20L View product	B LG GGWH20L optical disc drive Internal Model GGWH20L View product
Designidentical
Internal	Yes	Yes
Disc loading type	Tray	Tray
Performanceidentical
Interface	Serial ATA	Serial ATA
Writing speedidentical
CD write speed	40x	40x
CD rewrite speed	40x	40x
BD-R write speed	6x	6x
BD-RE rewrite speed	2x	2x
DVD+R Double Layer write speed	12x	12x
DVD+R write speed	12x	12x
DVD+RW write speed	10x	10x
DVD-R Double Layer write speed	12x	12x
DVD-R write speed	12x	12x
DVD-RW write speed	10x	10x
Reading speedidentical
CD read speed	40x	40x
Access timeidentical
DVD drive average random access time	160 ms	160 ms
BD-ROM average random access time	180 ms	180 ms
CD-ROM drive average random access time	150 ms	150 ms
Record modesidentical
Disc-at-once (DAO)	Yes	Yes
Layer Jump Recording	Yes	Yes
Packet writing	Yes	Yes
Random write	Yes	Yes
Sequential writing	Yes	Yes
Session-at-once (SAO)	Yes	Yes
Track-at-once (TAO)	Yes	Yes
Operational conditionsidentical
Operating relative humidity (H-H)	15 - 85%	15 - 85%
Operating temperature (T-T)	5 - 45 °C	5 - 45 °C
Weight & dimensionsidentical
Weight	870 g	870 g
Other featuresidentical
Dimensions (WxDxH)	146 x 41.3 x 185 mm	146 x 41.3 x 185 mm
Compatible operating systems	Media Center Edition Windows 2000 Professional Windows XP Home Edition, Professional Windows Vista (x86, x64)	Media Center Edition Windows 2000 Professional Windows XP Home Edition, Professional Windows Vista (x86, x64)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.