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Product comparison · 2 optical disc drives

NEC 16x DVD-ROM E-IDE / ATAPI vs NEC AD-7191A optical disc drive Internal Silver

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  • 8specifications compared
  • 3differ
  • 5identical
  • 21known for one product only

Key differences

  • DVD drive average random access time
    • 125 ms
    • 160 ms
  • CD-ROM drive average random access time
    • 100 ms
    • 140 ms
  • Weight
    • 640 g
    • 600 g

Side by side

Differences highlightedShow differences only
29 specifications
A

NEC

16x DVD-ROM E-IDE / ATAPIView product
B

NEC

AD-7191A optical disc drive Internal Silver

Model AD-7191A

View product
Designidentical
InternalYesYes
Product colourKnown for oneSilver
Disc loading typeKnown for oneTray
Performanceidentical
InterfaceEIDE/ATAEIDE/ATA
Drive device, buffer sizeKnown for one0.2 MB
Writing speedidentical
CD write speedKnown for one48x
CD rewrite speedKnown for one32x
DVD+R write speedKnown for one20x
DVD+RW write speedKnown for one8x
DVD-R Double Layer write speedKnown for one8x
DVD-R write speedKnown for one20x
DVD-RAM write speedKnown for one12x
DVD-RW write speedKnown for one6x
Reading speedidentical
CD read speed48x48x
DVD+R read speedKnown for one16x
DVD read speedKnown for one16x
Access time2 differ
DVD drive average random access timeDiffers125 ms160 ms
CD-ROM drive average random access timeDiffers100 ms140 ms
Record modesidentical
Disc-at-once (DAO)Known for oneYes
Fixed packetKnown for oneYes
Multi sessionKnown for oneYes
Packet writingKnown for oneYes
Session-at-once (SAO)Known for oneYes
Track-at-once (TAO)Known for oneYes
Variable packetKnown for oneYes
Weight & dimensions1 differ
Height42 mm42 mm
WeightDiffers640 g600 g
Other featuresidentical
Media types supportedKnown for oneDVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R, CD-RW
Dimensions (WxDxH)148 x 170 x 42 mm148 x 170 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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