Product comparison · 2 optical disc drives

LG GH22NS30 optical disc drive Internal vs NEC AD-7220S optical disc drive Internal Black

20specifications compared
5differ
15identical
20known for one product only

Key differences

DVD+R Double Layer write speed
- GH22NS30 optical disc drive Internal:16x
- AD-7220S optical disc drive Internal Black:8x
DVD-R Double Layer write speed
- GH22NS30 optical disc drive Internal:16x
- AD-7220S optical disc drive Internal Black:8x
DVD drive average random access time
- GH22NS30 optical disc drive Internal:140 ms
- AD-7220S optical disc drive Internal Black:160 ms
CD-ROM drive average random access time
- GH22NS30 optical disc drive Internal:120 ms
- AD-7220S optical disc drive Internal Black:140 ms
Dimensions (WxDxH)
- GH22NS30 optical disc drive Internal:146 x 41.3 x 165 mm
- AD-7220S optical disc drive Internal Black:148 x 170 x 42 mm

Side by side

Differences highlightedShow differences only

Comparison of GH22NS30, AD-7220S
40 specifications	A LG GH22NS30 optical disc drive Internal Model GH22NS30 View product	B NEC AD-7220S optical disc drive Internal Black Model AD-7220S 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
Performanceidentical
Interface	Serial ATA	Serial ATA
LightScribeKnown for one	Unknown — not stated by the source	No
Drive device, buffer size	2 MB	2 MB
Optical disc diameterKnown for one	Unknown — not stated by the source	120 mm
Burst transfer rateKnown for one	Unknown — not stated by the source	150 MB/s
Writing speed2 differ
CD write speed	48x	48x
CD rewrite speed	32x	32x
CD-R write speed	48x	48x
CD-RW write speed	32x	32x
DVD+R Double Layer write speedDiffers	16x	8x
DVD+R write speed	22x	22x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speedDiffers	16x	8x
DVD-R write speed	22x	22x
DVD-RAM write speed	12x	12x
DVD-RW write speed	6x	6x
Reading speedidentical
CD read speed	48x	48x
DVD-ROM read speed	16x	16x
CD-R read speedKnown for one	48x	Unknown — not stated by the source
CD-ROM read speedKnown for one	48x	Unknown — not stated by the source
CD-RW read speedKnown for one	40x	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-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
Record modesidentical
Disc-at-once (DAO)Known for one	Unknown — not stated by the source	Yes
Fixed packetKnown 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
Variable packetKnown for one	Unknown — not stated by the source	Yes
Weight & dimensionsidentical
WeightKnown for one	Unknown — not stated by the source	600 g
Other features1 differ
Media types supportedKnown for one	Unknown — not stated by the source	DVDROM, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-R DL, DVD-RW, DVD-RAM, CD-ROM (mode 1), CD-ROM/XA (mode 2, form 1/form 2), Photo CD, CD Extra, CD-TEXT, CD-I, VIDEO CD, DVD-Video, DVD-Audio, CD-DA, Enhance CD, UDF (fixed/variable Packet mode), DVD-Audio
Dimensions (WxDxH)Differs	146 x 41.3 x 165 mm	148 x 170 x 42 mm
Maximum data transfer rateKnown for one	22.16 Mbit/s	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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