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Product comparison · 2 optical disc drives

NEC AD7170S, Black vs NEC NR-9500B Beige

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  • 16specifications compared
  • 8differ
  • 8identical
  • 12known for one product only

Key differences

  • Product colour
    • Black
    • Beige
  • Interface
    • Serial ATA
    • EIDE/ATA
  • CD write speed
    • 48x
    • 52x
  • CD read speed
    • 48x
    • 52x
  • CD-ROM drive average random access time
    • 140 ms
    • 110 ms
  • Weight
    • 705 g
    • 750 g
  • Dimensions (WxDxH)
    • 148 x 175 x 42 mm
    • 148.2 x 184 x 42 mm

Side by side

Differences highlightedShow differences only
28 specifications
A

NEC

AD7170S, BlackView product
B

NEC

NR-9500B BeigeView product
Design1 differ
InternalYesYes
Product colourDiffersBlackBeige
Disc loading typeTrayTray
Performance1 differ
InterfaceDiffersSerial ATAEIDE/ATA
Drive device, buffer sizeKnown for one2 MB
Plug and PlayKnown for oneYes
Writing speed1 differ
CD write speedDiffers48x52x
CD rewrite speed32x32x
DVD+R write speedKnown for one18x
DVD+RW write speedKnown for one8x
DVD-R Double Layer write speedKnown for one8x
DVD-R write speedKnown for one18x
DVD-RAM write speedKnown for one12x
DVD-RW write speedKnown for one6x
Reading speed1 differ
CD read speedDiffers48x52x
DVD+R read speedKnown for one16x
Access time1 differ
DVD drive average random access timeKnown for one160 ms
CD-ROM drive average random access timeDiffers140 ms110 ms
Record modesidentical
Disc-at-once (DAO)YesYes
Multi sessionYesYes
Packet writingYesYes
Session-at-once (SAO)YesYes
Track-at-once (TAO)YesYes
Fixed packetKnown for oneYes
Variable packetKnown for oneYes
Weight & dimensions1 differ
WeightDiffers705 g750 g
Other features2 differ
Media types supportedDiffersDVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R, CD-RWCD-ROM, CD-R, CD-RW
Dimensions (WxDxH)Differs148 x 175 x 42 mm148.2 x 184 x 42 mm

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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