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Product comparison · 2 optical disc drives

NEC ND-6750 DVD-RW BLACK SLIM vs NEC ND-7551DVD RW Black Slim

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  • 31specifications compared
  • 6differ
  • 25identical
  • 12known for one product only

Key differences

  • CD rewrite speed
    • 24x
    • 20x
  • CD-RW write speed
    • 24x
    • 20x
  • Access time
    • 150 ms
    • 130 ms

Side by side

Differences highlightedShow differences only
43 specifications
A

NEC

ND-6750 DVD-RW BLACK SLIMView product
B

NEC

ND-7551DVD RW Black SlimView product
Designidentical
InternalYesYes
Product colourBlackBlack
Disc loading typeTrayTray
Performanceidentical
Optical drive typeDVD-RWDVD-RW
Drive device, buffer sizeKnown for one2 MB
Writing speed2 differ
CD write speed24x24x
CD rewrite speedDiffers24x20x
CD-R write speed24x24x
CD-RW write speedDiffers24x20x
DVD+R write speed8x8x
DVD+RW write speed8x8x
DVD-R Double Layer write speed4x4x
DVD-R write speed8x8x
DVD-RAM write speedKnown for one5x
DVD-RW write speed6x6x
DVD write speed8x8x
DVD rewrite speedKnown for one8x
DVD-R9 write speedKnown for one4x
Reading speedidentical
CD read speed24x24x
CD-R read speedKnown for one24x
CD-RW read speedKnown for one20x
DVD+R read speedKnown for one8x
DVD-R Double Layer read speedKnown for one4x
DVD-R read speedKnown for one8x
DVD-RAM read speedKnown for one5x
DVD-RW read speedKnown for one6x
DVD+RW read speedKnown for one8x
DVD read speed8x8x
Access time1 differ
Access timeDiffers150 ms130 ms
Weight & dimensionsidentical
Weight190 g190 g
Other features3 differ
Media types supportedDiffersDVD-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 CDDVD-ROM,DVD-R,DVD+R, DVD+RW,CD-ROM, CD-R, CD-RW
Minimum system requirements-MPC Level 3 -MultiRead -PC2001-MPC Level 3 -MultiRead -PC2001
Write methodsDiffersDAO, SAO,TAO + zero gap,variable / fixed packet, multisessionDAO, SAO,TAO + zero gap, variable / fixed packet, multisession
Dimensions (WxDxH)128 x 12.7 x 129 mm128 x 12.7 x 129 mm
Number of optical discs1 discs1 discs
DVD+R speed8x8x
DVD+RW speed8x8x
DVD-R speed8x8x
DVD-RW speed6x6x
Double Layer DVD write speed4x4x
Drive devices burst data transfer rate (PIO)Mode 4Mode 4
Drive devices burst data transfer rate (Ultra DMA)3333
Technical featuresDiffers-12 cm / 8 cm CD & DVD media -buffer underrun prevention-12 cm / 8 cm CD & DVD -buffer underrun prevention

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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