BenQ DVD DW1650 Retail vs NEC ND-4551DVD RW Champagne

Comparison of DVD DW1650 Retail, ND-4551DVD RW Champagne

46 specifications	A BenQ DVD DW1650 RetailView product	B NEC ND-4551DVD RW ChampagneView product
Designidentical
Internal	Yes	Yes
Product colourKnown for one	—Unknown — not stated by the source	Gold
Disc loading typeKnown for one	—Unknown — not stated by the source	Tray
Performanceidentical
Optical drive type	DVD-RW	DVD-RW
Drive device, buffer size	2 MB	2 MB
Writing speedidentical
CD write speed	48x	48x
CD rewrite speed	32x	32x
CD-R write speedKnown for one	—Unknown — not stated by the source	48x
CD-RW write speedKnown for one	—Unknown — not stated by the source	32x
DVD+R write speedKnown for one	—Unknown — not stated by the source	16x
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	6x
DVD-R write speedKnown for one	—Unknown — not stated by the source	16x
DVD-RW write speedKnown for one	—Unknown — not stated by the source	6x
DVD write speedKnown for one	—Unknown — not stated by the source	16x
DVD rewrite speedKnown for one	—Unknown — not stated by the source	8x
Reading speedidentical
CD read speed	48x	48x
CD-R read speedKnown for one	—Unknown — not stated by the source	48x
CD-RW read speedKnown for one	—Unknown — not stated by the source	32x
DVD+R read speedKnown for one	—Unknown — not stated by the source	16x
DVD-R Double Layer read speedKnown for one	—Unknown — not stated by the source	6x
DVD-R read speedKnown for one	—Unknown — not stated by the source	16x
DVD-RAM read speedKnown for one	—Unknown — not stated by the source	5x
DVD-RW read speedKnown for one	—Unknown — not stated by the source	6x
DVD+RW read speedKnown for one	—Unknown — not stated by the source	8x
DVD read speed	16x	16x
Access timeidentical
Access timeKnown for one	—Unknown — not stated by the source	140 ms
Other features2 differ
Media types supportedDiffers	DVD+R DL 8.5GB, DVD-R DL 8.5GB, DVD+R 4.7GB, DVD+RW 4.7GB, DVD-R 4.7GB,DVD-RW 4.7GB (Close session), DVD-5, DVD-9, DVD-10, CD-DA, CD-ROM XA (m1, m2f1/m2f2), CD-R, CD-RW, Bootable CD, Photo CD (single & multi-session), Video CD, Super Video CD, CD-Extra, Mixed-mode CD, CD-Text, CD-Graphics	DVD-ROM, DVD-R, DVD-RW, DVD+R, DVD+R9, DVD+RW, DVD-Video, CD Extra, CD Text, CD-I Ready, CD-Bridge, Photo CD, Video CD, Hybrid CD
Minimum system requirementsKnown for one	—Unknown — not stated by the source	-MPC Level 3 -MultiRead -PC2001
Write methodsKnown for one	—Unknown — not stated by the source	DAO,SAO,TAO
Dimensions (WxDxH)Differs	178 x 146 x 42 mm	148 x 42 x 190 mm
Number of optical discs	1 discs	1 discs
DVD+R speed	16x	16x
DVD+RW speed	8x	8x
DVD-R speed	16x	16x
DVD-RW speed	6x	6x
Double Layer DVD write speedKnown for one	—Unknown — not stated by the source	6x
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	33
Minimum RAMKnown for one	128 MB	—Unknown — not stated by the source
Minimum processorKnown for one	Pentium III 550MHz	—Unknown — not stated by the source
Minimum storage drive spaceKnown for one	0.1 GB	—Unknown — not stated by the source
Compatible operating systemsKnown for one	Windows XP / 2000 / ME / 98SE	—Unknown — not stated by the source
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	8 - 80%	—Unknown — not stated by the source
Operating temperature (T-T)Known for one	5 - 50 °C	—Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	820 g	—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.