Product comparison · 2 optical disc drives

LG GDRH30N DVD-ROM vs LG GH20NS optical disc drive Internal Black

12specifications compared
6differ
6identical
38known for one product only

Key differences

Interface
- GDRH30N DVD-ROM:EIDE/ATA
- GH20NS optical disc drive Internal Black:Serial ATA
DVD drive average random access time
- GDRH30N DVD-ROM:160 ms
- GH20NS optical disc drive Internal Black:175 ms
CD-ROM drive average random access time
- GDRH30N DVD-ROM:140 ms
- GH20NS optical disc drive Internal Black:120 ms
Weight
- GDRH30N DVD-ROM:700 g
- GH20NS optical disc drive Internal Black:780 g
Dimensions (WxDxH)
- GDRH30N DVD-ROM:146 x 165 x 41.3 mm
- GH20NS optical disc drive Internal Black:146 x 41.3 x 165 mm

Side by side

Differences highlightedShow differences only

Comparison of GDRH30N DVD-ROM, GH20NS
50 specifications	A LG GDRH30N DVD-ROM View product	B LG GH20NS optical disc drive Internal Black Model GH20NS View product
Designidentical
Internal	Yes	Yes
Product colourKnown for one	Unknown — not stated by the source	Black
Disc loading type	Tray	Tray
MountingKnown for one	Unknown — not stated by the source	Vertical/Horizontal
Performance1 differ
InterfaceDiffers	EIDE/ATA	Serial ATA
Drive device, buffer sizeKnown for one	Unknown — not stated by the source	2 MB
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Writing speedidentical
CD write speed	48x	48x
CD rewrite speed	32x	32x
CD-R write speedKnown for one	Unknown — not stated by the source	48x
CD-RW write speedKnown for one	Unknown — not stated by the source	32x
DVD+R Double Layer write speedKnown for one	Unknown — not stated by the source	10x
DVD+R write speedKnown for one	Unknown — not stated by the source	20x
DVD+RW write speedKnown for one	Unknown — not stated by the source	8x
DVD-R Double Layer write speedKnown for one	Unknown — not stated by the source	10x
DVD-R write speedKnown for one	Unknown — not stated by the source	20x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	12x
DVD-RW write speedKnown for one	Unknown — not stated by the source	6x
Reading speedidentical
CD read speed	48x	48x
CD-R read speedKnown for one	Unknown — not stated by the source	48x
CD-ROM read speedKnown for one	Unknown — not stated by the source	48x
CD-RW read speedKnown for one	Unknown — not stated by the source	40x
DVD+R read speedKnown for one	Unknown — not stated by the source	16x
DVD-R Double Layer read speedKnown for one	Unknown — not stated by the source	12x
DVD-R read speedKnown for one	Unknown — not stated by the source	16x
DVD-RAM read speedKnown for one	Unknown — not stated by the source	5x
DVD-ROM read speed	16x	16x
DVD-RW read speedKnown for one	Unknown — not stated by the source	13x
DVD+R Double Layer read speedKnown for one	Unknown — not stated by the source	12x
DVD+RW read speedKnown for one	Unknown — not stated by the source	13x
Access time2 differ
DVD drive average random access timeDiffers	160 ms	175 ms
CD-ROM drive average random access timeDiffers	140 ms	120 ms
Record modesidentical
Disc-at-once (DAO)Known for one	Unknown — not stated by the source	Yes
Layer Jump RecordingKnown for one	Unknown — not stated by the source	Yes
Packet writingKnown for one	Unknown — not stated by the source	Yes
Random writeKnown for one	Unknown — not stated by the source	Yes
Sequential writingKnown for one	Unknown — not stated by the source	Yes
Session-at-once (SAO)Known for one	Unknown — not stated by the source	Yes
Track-at-once (TAO)Known for one	Unknown — not stated by the source	Yes
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	15 - 85%
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 45 °C
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-30 - 60 °C
Weight & dimensions1 differ
WeightDiffers	700 g	780 g
Other features2 differ
Power requirementsKnown for one	Unknown — not stated by the source	+12V / +5V DC
Dimensions (WxDxH)Differs	146 x 165 x 41.3 mm	146 x 41.3 x 165 mm
Minimum RAMKnown for one	Unknown — not stated by the source	512 MB
Minimum processorKnown for one	Unknown — not stated by the source	Pentium 4 1.4 GHz
Compatible operating systemsDiffers	Windows 95, 98, 2K, ME, NT 4.0 or Later, XP, Vista, 2003 server, Linux Slackware Ver 3.10, Solaris Ver 2.4	Windows ME, 2000 Professional, XP Home, Professional, Vista
Buffer sizeKnown for one	198 KB	Unknown — not stated by the source

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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