Product comparison · 2 optical disc drives

LG DVD RW 22x Black vs LG GH22NS40 optical disc drive Internal

11specifications compared
3differ
8identical
24known for one product only

Key differences

Interface
- DVD RW 22x Black:EIDE/ATA
- GH22NS40 optical disc drive Internal:Serial ATA
DVD+R Double Layer write speed
- DVD RW 22x Black:12x
- GH22NS40 optical disc drive Internal:16x
DVD-R Double Layer write speed
- DVD RW 22x Black:12x
- GH22NS40 optical disc drive Internal:16x

Side by side

Differences highlightedShow differences only

Comparison of DVD RW 22x Black, GH22NS40
35 specifications	A LG DVD RW 22x Black View product	B LG GH22NS40 optical disc drive Internal Model GH22NS40 View product
Designidentical
Internal	Yes	Yes
Disc loading typeKnown for one	Unknown — not stated by the source	Tray
Performance1 differ
InterfaceDiffers	EIDE/ATA	Serial ATA
Drive device, buffer sizeKnown for one	Unknown — not stated by the source	2 MB
Writing speed2 differ
CD write speed	48x	48x
CD rewrite speed	32x	32x
DVD+R Double Layer write speedDiffers	12x	16x
DVD+R write speed	22x	22x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speedDiffers	12x	16x
DVD-R write speed	22x	22x
DVD-RAM write speed	12x	12x
DVD-RW write speedKnown for one	Unknown — not stated by the source	6x
CD-R write speedKnown for one	48x	Unknown — not stated by the source
CD-RW write speedKnown for one	32x	Unknown — not stated by the source
Reading speedidentical
CD read speed	48x	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	12x
DVD-ROM read speedKnown for one	Unknown — not stated by the source	16x
DVD-RW read speedKnown for one	Unknown — not stated by the source	12x
DVD+R Double Layer read speedKnown for one	Unknown — not stated by the source	12x
Access timeidentical
DVD drive average random access timeKnown for one	Unknown — not stated by the source	145 ms
CD-ROM drive average random access timeKnown for one	Unknown — not stated by the source	120 ms
Record modesidentical
Disc-at-once (DAO)Known for one	Unknown — not stated by the source	Yes
Multi sessionKnown 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
Weight & dimensionsidentical
WeightKnown for one	Unknown — not stated by the source	750 g
Packaging contentidentical
Bundled softwareKnown for one	Unknown — not stated by the source	Nero Express In CD PowerDVD PowerProducer Gold
Other featuresidentical
Power requirementsKnown for one	Unknown — not stated by the source	+12V/+5V DC
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	146 x 170 x 41.3 mm
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 2000, Windows ME, Windows Vista, Windows XP

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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