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Product comparison · 2 optical disc drives

NEC AD-7170S Silver vs NEC NR-9500B Beige

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  • 18specifications compared
  • 8differ
  • 10identical
  • 17known for one product only

Key differences

  • Product colour
    • Silver
    • 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
35 specifications
A

NEC

AD-7170S SilverView product
B

NEC

NR-9500B BeigeView product
Design1 differ
InternalYesYes
Product colourDiffersSilverBeige
Disc loading typeTrayTray
MountingKnown for oneVertical/Horizontal
Performance1 differ
Optical drive typeKnown for oneDVD-RW
InterfaceDiffersSerial ATAEIDE/ATA
Drive device, buffer size2 MB2 MB
Plug and PlayKnown for oneYes
Writing speed1 differ
CD write speedDiffers48x52x
CD rewrite speed32x32x
CD-R write speedKnown for one48x
CD-RW write speedKnown for one32x
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 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
Fixed packetYesYes
Multi sessionYesYes
Session-at-once (SAO)YesYes
Track-at-once (TAO)YesYes
Variable packetYesYes
Packet writingKnown for oneYes
Weight & dimensions1 differ
WeightDiffers705 g750 g
Other features2 differ
Media types supportedDiffersDVD-ROM, DVD-R (DL approx march 2005), DVD-RW, DVD+R, DVD+RW,DVD+R9,CD-ROM, CD-R & CD-RW 80mm & 120mmCD-ROM, CD-R, CD-RW
Write methodsKnown for oneDAO, SAO,TAO zero gap,variable / fixed packet, multisession
Dimensions (WxDxH)Differs148 x 175 x 42 mm148.2 x 184 x 42 mm
Number of optical discsKnown for one1 discs
Double Layer DVD write speedKnown for one8x

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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