Product comparison · 2 optical disc drives

LG GSA-H22LRB optical disc drive Internal DVD-RW vs NEC DVD-RW AD-7170S

16specifications compared
7differ
9identical
19known for one product only

Key differences

Interface
- GSA-H22LRB optical disc drive Internal DVD-RW:EIDE/ATA
- DVD-RW AD-7170S:Serial ATA
DVD+R write speed
- GSA-H22LRB optical disc drive Internal DVD-RW:16x
- DVD-RW AD-7170S:18x
DVD-R write speed
- GSA-H22LRB optical disc drive Internal DVD-RW:16x
- DVD-RW AD-7170S:18x
DVD drive average random access time
- GSA-H22LRB optical disc drive Internal DVD-RW:140 ms
- DVD-RW AD-7170S:160 ms
CD-ROM drive average random access time
- GSA-H22LRB optical disc drive Internal DVD-RW:120 ms
- DVD-RW AD-7170S:140 ms
Weight
- GSA-H22LRB optical disc drive Internal DVD-RW:1.5 kg
- DVD-RW AD-7170S:705 g
Dimensions (WxDxH)
- GSA-H22LRB optical disc drive Internal DVD-RW:146 x 41.3 x 165 mm
- DVD-RW AD-7170S:148 x 175 x 42 mm

Side by side

Differences highlightedShow differences only

Comparison of GSA-H22LRB, DVD-RW AD-7170S
35 specifications	A LG GSA-H22LRB optical disc drive Internal DVD-RW Model GSA-H22LRB View product	B NEC DVD-RW AD-7170S View product
Designidentical
Internal	Yes	Yes
MountingKnown for one	Vertical/Horizontal	Unknown — not stated by the source
Product colourKnown for one	Unknown — not stated by the source	Beige
Performance1 differ
Optical drive typeKnown for one	DVD-RW	Unknown — not stated by the source
InterfaceDiffers	EIDE/ATA	Serial ATA
LightScribeKnown for one	Yes	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	100000 h	Unknown — not stated by the source
Burst transfer rateKnown for one	Unknown — not stated by the source	1536 MB/s
Writing speed2 differ
CD write speed	48x	48x
CD rewrite speed	32x	32x
DVD+R Double Layer write speedKnown for one	8x	Unknown — not stated by the source
DVD+R write speedDiffers	16x	18x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speed	8x	8x
DVD-R write speedDiffers	16x	18x
DVD-RAM write speed	12x	12x
DVD-RW write speed	6x	6x
Reading speedidentical
CD read speed	48x	48x
DVD+R read speed	16x	16x
DVD-R Double Layer read speedKnown for one	12x	Unknown — not stated by the source
DVD-R read speedKnown for one	16x	Unknown — not stated by the source
DVD-RAM read speedKnown for one	12x	Unknown — not stated by the source
DVD-ROM read speedKnown for one	16x	Unknown — not stated by the source
DVD-RW read speedKnown for one	12x	Unknown — not stated by the source
DVD+R Double Layer read speedKnown for one	12x	Unknown — not stated by the source
DVD+RW read speedKnown for one	12x	Unknown — not stated by the source
Access time2 differ
DVD drive average random access timeDiffers	140 ms	160 ms
CD-ROM drive average random access timeDiffers	120 ms	140 ms
Weight & dimensions1 differ
WeightDiffers	1.5 kg	705 g
Other features1 differ
Dimensions (WxDxH)Differs	146 x 41.3 x 165 mm	148 x 175 x 42 mm
Buffer sizeKnown for one	2048 KB	Unknown — not stated by the source
Compatible operating systemsKnown for one	Windows 2000 Professional, Windows XP Home Edition / Windows XP Professional / Media Center Edition	Unknown — not stated by the source
Record modesidentical
Disc-at-once (DAO)Known 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

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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