Product comparison · 2 optical disc drives

HP dvd1040i 20X Multiformat DVD Writer vs NEC AD-7170A DVD-RW 18x

11specifications compared
2differ
9identical
30known for one product only

Key differences

DVD+R write speed
- dvd1040i 20X Multiformat DVD Writer:20x
- AD-7170A DVD-RW 18x:18x
DVD-R write speed
- dvd1040i 20X Multiformat DVD Writer:20x
- AD-7170A DVD-RW 18x:18x

Side by side

Differences highlightedShow differences only

Comparison of dvd1040i 20X Multiformat DVD Writer, AD-7170A DVD-RW 18x
41 specifications	A HP dvd1040i 20X Multiformat DVD Writer View product	B NEC AD-7170A DVD-RW 18x View product
Designidentical
Internal	Yes	Yes
Product colourKnown for one	Unknown — not stated by the source	Black
Disc loading typeKnown for one	Unknown — not stated by the source	Tray
Performanceidentical
InterfaceKnown for one	Unknown — not stated by the source	EIDE/ATA
Mean time between failures (MTBF)Known for one	70000 h	Unknown — not stated by the source
Writing speed2 differ
CD write speed	48x	48x
CD rewrite speed	32x	32x
DVD+R write speedDiffers	20x	18x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speed	8x	8x
DVD-R write speedDiffers	20x	18x
DVD-RAM write speed	12x	12x
DVD-RW write speed	6x	6x
DVD+R Double Layer write speedKnown for one	8x	Unknown — not stated by the source
Reading speedidentical
CD read speed	48x	48x
DVD read speedKnown for one	Unknown — not stated by the source	16x
CD-ROM read speedKnown for one	48x	Unknown — not stated by the source
DVD-ROM read speedKnown for one	16x	Unknown — not stated by the source
Access timeidentical
DVD drive average random access time	160 ms	160 ms
Access timeKnown for one	Unknown — not stated by the source	140 ms
CD-ROM drive average random access timeKnown for one	160 ms	Unknown — not stated by the source
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	705 g
Other featuresidentical
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)Known for one	Unknown — not stated by the source	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
Power requirementsKnown for one	+5V±5%; +12V±10%	Unknown — not stated by the source
Minimum system requirementsKnown for one	1 x IEEE 1394	Unknown — not stated by the source
Minimum RAMKnown for one	128 MB	Unknown — not stated by the source
Minimum processorKnown for one	1.6 GHz Intel Pentium IV	Unknown — not stated by the source
Minimum storage drive spaceKnown for one	1 GB	Unknown — not stated by the source
Compatible operating systemsKnown for one	Microsoft Windows XP/2000 Professional SP4	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	5 - 50 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 65 °C	Unknown — not stated by the source
Packaging contentidentical
Bundled softwareKnown for one	Nero 7 Essentials	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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