Product comparison · 2 optical disc drives

NEC AD-7170A DVD-RW 18x vs Samsung DVD_ROM SHD163

6specifications compared
3differ
3identical
26known for one product only

Key differences

Interface
- AD-7170A DVD-RW 18x:EIDE/ATA
- DVD_ROM SHD163:Serial ATA
CD rewrite speed
- AD-7170A DVD-RW 18x:32x
- DVD_ROM SHD163:48x
Dimensions (WxDxH)
- AD-7170A DVD-RW 18x:148 x 175 x 42 mm
- DVD_ROM SHD163:148.2 x 170 x 42 mm

Side by side

Differences highlightedShow differences only

Comparison of AD-7170A DVD-RW 18x, DVD_ROM SHD163
32 specifications	A NEC AD-7170A DVD-RW 18x View product	B Samsung DVD_ROM SHD163 View product
Designidentical
Internal	Yes	Yes
Product colourKnown for one	Black	Unknown — not stated by the source
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
MountingKnown for one	Unknown — not stated by the source	Vertical/Horizontal
Performance1 differ
InterfaceDiffers	EIDE/ATA	Serial ATA
Writing speed1 differ
CD write speed	48x	48x
CD rewrite speedDiffers	32x	48x
DVD+R write speedKnown for one	18x	Unknown — not stated by the source
DVD+RW write speedKnown for one	8x	Unknown — not stated by the source
DVD-R Double Layer write speedKnown for one	8x	Unknown — not stated by the source
DVD-R write speedKnown for one	18x	Unknown — not stated by the source
DVD-RAM write speedKnown for one	12x	Unknown — not stated by the source
DVD-RW write speedKnown for one	6x	Unknown — not stated by the source
Reading speedidentical
CD read speed	48x	48x
DVD read speedKnown for one	16x	Unknown — not stated by the source
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	48x
DVD-ROM read speedKnown for one	Unknown — not stated by the source	16x
Access timeidentical
DVD drive average random access timeKnown for one	160 ms	Unknown — not stated by the source
Access timeKnown for one	140 ms	Unknown — not stated by the source
Record modesidentical
Disc-at-once (DAO)Known for one	Yes	Unknown — not stated by the source
Fixed packetKnown for one	Yes	Unknown — not stated by the source
Multi sessionKnown for one	Yes	Unknown — not stated by the source
Session-at-once (SAO)Known for one	Yes	Unknown — not stated by the source
Track-at-once (TAO)Known for one	Yes	Unknown — not stated by the source
Variable packetKnown for one	Yes	Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	705 g	Unknown — not stated by the source
Other features1 differ
Media types supportedKnown for one	DVD-ROM, DVD-Video, CD-ROM, CD-ROM XA, CD-I Ready, CD-Bridge, PhotoCD, VideoCD, CD-DA, CD Extra, CD Text	Unknown — not stated by the source
Dimensions (WxDxH)Differs	148 x 175 x 42 mm	148.2 x 170 x 42 mm
Drive devices burst data transfer rate (PIO)Known for one	mode 4	Unknown — not stated by the source
Drive devices burst data transfer rate (Ultra DMA)Known for one	Ultra DMA 66	Unknown — not stated by the source
Buffer sizeKnown for one	Unknown — not stated by the source	512 KB

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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