Product comparison · 2 optical disc drives

JVC CU-VD3US Direct DVD Burning vs NEC AD-7191A optical disc drive Internal Silver

12specifications compared
11differ
1identical
28known for one product only

Key differences

Internal
- CU-VD3US Direct DVD Burning:No
- AD-7191A optical disc drive Internal Silver:Yes
Product colour
- CU-VD3US Direct DVD Burning:Black
- AD-7191A optical disc drive Internal Silver:Silver
CD write speed
- CU-VD3US Direct DVD Burning:0x
- AD-7191A optical disc drive Internal Silver:48x
CD rewrite speed
- CU-VD3US Direct DVD Burning:0x
- AD-7191A optical disc drive Internal Silver:32x
DVD-R Double Layer write speed
- CU-VD3US Direct DVD Burning:4x
- AD-7191A optical disc drive Internal Silver:8x
DVD-R write speed
- CU-VD3US Direct DVD Burning:8x
- AD-7191A optical disc drive Internal Silver:20x
DVD-RW write speed
- CU-VD3US Direct DVD Burning:4x
- AD-7191A optical disc drive Internal Silver:6x
CD read speed
- CU-VD3US Direct DVD Burning:10x
- AD-7191A optical disc drive Internal Silver:48x

Side by side

Differences highlightedShow differences only

Comparison of CU-VD3US Direct DVD Burning, AD-7191A
40 specifications	A JVC CU-VD3US Direct DVD Burning View product	B NEC AD-7191A optical disc drive Internal Silver Model AD-7191A View product
Design2 differ
InternalDiffers	No	Yes
Product colourDiffers	Black	Silver
Performanceidentical
InterfaceKnown for one	Unknown — not stated by the source	EIDE/ATA
Writing speed5 differ
CD write speedDiffers	0x	48x
CD rewrite speedDiffers	0x	32x
DVD+R write speedKnown for one	Unknown — not stated by the source	20x
DVD+RW write speedKnown for one	Unknown — not stated by the source	8x
DVD-R Double Layer write speedDiffers	4x	8x
DVD-R write speedDiffers	8x	20x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	12x
DVD-RW write speedDiffers	4x	6x
Reading speed1 differ
CD read speedDiffers	10x	48x
DVD+R read speedKnown for one	Unknown — not stated by the source	16x
CD-R read speedKnown for one	10x	Unknown — not stated by the source
CD-ROM read speedKnown for one	10x	Unknown — not stated by the source
CD-RW read speedKnown for one	10x	Unknown — not stated by the source
DVD-R Double Layer read speedKnown for one	8x	Unknown — not stated by the source
DVD-R read speedKnown for one	12x	Unknown — not stated by the source
DVD-ROM read speedKnown for one	5x	Unknown — not stated by the source
DVD-RW read speedKnown for one	12x	Unknown — not stated by the source
Access timeidentical
DVD drive average random access timeKnown for one	Unknown — not stated by the source	160 ms
CD-ROM drive average random access timeKnown for one	Unknown — not stated by the source	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
Packet writingKnown 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 & dimensions2 differ
HeightDiffers	43 mm	42 mm
WeightDiffers	380 g	600 g
Other features1 differ
Media types supportedKnown for one	Unknown — not stated by the source	DVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R, CD-RW
Dimensions (WxDxH)Differs	141 x 166 x 43 mm	148 x 170 x 42 mm
Power requirementsKnown for one	DC 5.2V	Unknown — not stated by the source
Minimum RAMKnown for one	128 MB	Unknown — not stated by the source
Minimum processorKnown for one	Pentium 3/4	Unknown — not stated by the source
Compatible operating systemsKnown for one	Windows XP	Unknown — not stated by the source
USB 2.0 ports quantityKnown for one	1	Unknown — not stated by the source
Weight (imperial)Known for one	0.381 kg (0.84 lbs)	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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