Product comparison · 2 optical disc drives

ASUS DRW-20B1LT optical disc drive Internal Black vs ASUS DRW-20B1LT LightScribe DVD±R/RW

42specifications compared
2differ
40identical
8known for one product only

Key differences

Power requirements
- DRW-20B1LT optical disc drive Internal Black:DC+5V ±5%,DC+12V ±10 %
- DRW-20B1LT LightScribe DVD±R/RW:DC+5V ±5%, DC+12V ±10 %

Side by side

Differences highlightedShow differences only

Comparison of DRW-20B1LT, DRW-20B1LT LightScribe DVD±R/RW
50 specifications	A ASUS DRW-20B1LT optical disc drive Internal Black Model DRW-20B1LT View product	B ASUS DRW-20B1LT LightScribe DVD±R/RW View product
Designidentical
Internal	Yes	Yes
Product colour	Black	Black
Mounting	Vertical/Horizontal	Vertical/Horizontal
Performanceidentical
Interface	Serial ATA	Serial ATA
LightScribe	Yes	Yes
Drive device, buffer size	2 MB	2 MB
Optical disc diameter	120 mm	120 mm
Mean time between failures (MTBF)	60000 h	60000 h
Writing speedidentical
CD write speed	48x	48x
CD rewrite speed	32x	32x
CD-R write speedKnown for one	Unknown — not stated by the source	32x
CD-RW write speedKnown for one	Unknown — not stated by the source	32x
DVD+R Double Layer write speed	12x	12x
DVD+R write speed	20x	20x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speed	12x	12x
DVD-R write speed	20x	20x
DVD-RAM write speed	12x	12x
DVD-RW write speed	6x	6x
Reading speedidentical
CD read speed	40x	40x
CD-R read speedKnown for one	Unknown — not stated by the source	40x
CD-ROM read speedKnown for one	Unknown — not stated by the source	16x
CD-RW read speed	40x	40x
DVD+R read speedKnown for one	Unknown — not stated by the source	16x
DVD-R Double Layer read speed	12x	12x
DVD-R read speedKnown for one	Unknown — not stated by the source	16x
DVD-ROM read speed	16x	16x
DVD-RW read speedKnown for one	Unknown — not stated by the source	12x
DVD+R Double Layer read speed	12x	12x
DVD+RW read speedKnown for one	Unknown — not stated by the source	12x
Access timeidentical
DVD drive average random access time	140 ms	140 ms
CD-ROM drive average random access time	150 ms	150 ms
Record modesidentical
Disc-at-once (DAO)	Yes	Yes
Multi session	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
Variable packet	Yes	Yes
Operational conditionsidentical
Operating relative humidity (H-H)	20 - 85%	20 - 85%
Operating temperature (T-T)	5 - 45 °C	5 - 45 °C
Storage relative humidity (H-H)	10 - 90%	10 - 90%
Storage temperature (T-T)	-20 - 60 °C	-20 - 60 °C
Weight & dimensionsidentical
Height	41.3 mm	41.3 mm
Weight	610 g	610 g
Other features2 differ
Power requirementsDiffers	DC+5V ±5%,DC+12V ±10 %	DC+5V ±5%, DC+12V ±10 %
Media types supported	DVD-ROM, DVD+/-RW, DVD+/-R, Photo CD, Video CD, CD-DA, CD-Extra, CD-Text, CD-R, CD-RW, DVD-RAM	DVD-ROM, DVD+/-RW, DVD+/-R, Photo CD, Video CD, CD-DA, CD-Extra, CD-Text, CD-R, CD-RW, DVD-RAM
Dimensions (WxDxH)	146 x 170 x 41.3 mm	146 x 170 x 41.3 mm
Compatible operating systemsDiffers	Windows 2000, Windows 98, Windows NT, XP, Vista	Windows 2000/98/NT/XP/Vista

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.

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