Product comparison · 2 optical disc drives

LG Combo, CD Rewriter & DVD Rom reader, Black vs NEC AD-7170A DVD-RW 18x

12specifications compared
6differ
6identical
27known for one product only

Key differences

CD write speed
- Combo, CD Rewriter & DVD Rom reader, Black:52x
- AD-7170A DVD-RW 18x:48x
CD read speed
- Combo, CD Rewriter & DVD Rom reader, Black:52x
- AD-7170A DVD-RW 18x:48x
DVD drive average random access time
- Combo, CD Rewriter & DVD Rom reader, Black:120 ms
- AD-7170A DVD-RW 18x:160 ms
Access time
- Combo, CD Rewriter & DVD Rom reader, Black:100 ms
- AD-7170A DVD-RW 18x:140 ms
Weight
- Combo, CD Rewriter & DVD Rom reader, Black:700 g
- AD-7170A DVD-RW 18x:705 g
Dimensions (WxDxH)
- Combo, CD Rewriter & DVD Rom reader, Black:146 x 165 x 41.3 mm
- AD-7170A DVD-RW 18x:148 x 175 x 42 mm

Side by side

Differences highlightedShow differences only

Comparison of Combo, CD Rewriter & DVD Rom reader, Black, AD-7170A DVD-RW 18x
39 specifications	A LG Combo, CD Rewriter & DVD Rom reader, Black View product	B NEC AD-7170A DVD-RW 18x View product
Performanceidentical
Drive device, buffer sizeKnown for one	2 MB	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Writing speed1 differ
CD write speedDiffers	52x	48x
DVD+R write speedKnown for one	Unknown — not stated by the source	18x
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	8x
DVD-R write speedKnown for one	Unknown — not stated by the source	18x
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
CD-R write speedKnown for one	5x	Unknown — not stated by the source
CD-RW write speedKnown for one	32x	Unknown — not stated by the source
Reading speed1 differ
CD read speedDiffers	52x	48x
CD-R read speedKnown for one	52x	Unknown — not stated by the source
CD-ROM read speedKnown for one	52x	Unknown — not stated by the source
CD-RW read speedKnown for one	52x	Unknown — not stated by the source
DVD+R read speedKnown for one	16x	Unknown — not stated by the source
DVD-R read speedKnown for one	16x	Unknown — not stated by the source
DVD-RW read speedKnown for one	16x	Unknown — not stated by the source
DVD+RW read speedKnown for one	16x	Unknown — not stated by the source
Access time2 differ
DVD drive average random access timeDiffers	120 ms	160 ms
Access timeDiffers	100 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 & dimensions1 differ
WeightDiffers	700 g	705 g
Other features1 differ
Media types supportedKnown for one	Unknown — not stated by the source	DVD-ROM, DVD-Video, CD-ROM, CD-ROM XA, CD-I Ready, CD-Bridge, PhotoCD, VideoCD, CD-DA, CD Extra, CD Text
Dimensions (WxDxH)Differs	146 x 165 x 41.3 mm	148 x 175 x 42 mm
Drive devices burst data transfer rate (PIO)Known for one	Unknown — not stated by the source	mode 4
Drive devices burst data transfer rate (Ultra DMA)Known for one	Unknown — not stated by the source	Ultra DMA 66
Number of optical discsKnown for one	1 discs	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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