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Product comparison · 2 optical disc drives

BenQ DW1670 ivory Bulk vs NEC AD-7630 Black

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  • 22specifications compared
  • 14differ
  • 8identical
  • 28known for one product only

Key differences

  • Interface
    • EIDE/ATA
    • IDE/ATA
  • CD write speed
    • 40x
    • 24x
  • CD rewrite speed
    • 24x
    • 16x
  • CD-R write speed
    • 40x
    • 24x
  • CD-RW write speed
    • 24x
    • 16x
  • DVD+R write speed
    • 16x
    • 8x
  • DVD-R write speed
    • 16x
    • 8x
  • DVD write speed
    • 16x
    • 8x

Side by side

Differences highlightedShow differences only
50 specifications
A

BenQ

DW1670 ivory BulkView product
B

NEC

AD-7630 BlackView product
Designidentical
Disc loading typeKnown for oneSlot
Performance1 differ
InterfaceDiffersEIDE/ATAIDE/ATA
Optical drive typeKnown for oneDVD-RW
Writing speed7 differ
CD write speedDiffers40x24x
CD rewrite speedDiffers24x16x
CD-R write speedDiffers40x24x
CD-RW write speedDiffers24x16x
DVD+R Double Layer write speedKnown for one8x
DVD+R write speedDiffers16x8x
DVD-R write speedDiffers16x8x
DVD write speedDiffers16x8x
DVD rewrite speedKnown for one8x
Reading speed2 differ
CD read speedDiffers40x24x
CD-R read speedKnown for one40x
CD-ROM read speedDiffers40x24x
CD-RW read speedKnown for one40x
DVD-RW read speedKnown for one16x
DVD+RW read speedKnown for one16x
DVD-R Double Layer read speedKnown for one4x
DVD-RAM read speedKnown for one8x
DVD read speedKnown for one8x
Operational conditionsidentical
Operating relative humidity (H-H)Known for one8 - 80%
Operating temperature (T-T)Known for one5 - 45 °C
Weight & dimensions1 differ
WeightDiffers800 g160 g
Other features3 differ
Power requirementsKnown for oneDC 5V +/- 5%, 1.8A, DC12V+/- 10%, 1.3A
Media types supportedDiffersDVD+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-RAM 2.6 GB DVD-RAM 4.7 GB Read: DVD-5 DVD-9 DVD-10 DVD-18 DVD+R/-R/+RW/-RW, 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 MiDVD-ROM, DVD-R, DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R DL, DVD-R DL, DVD-RAM, DVD-Video, CD-ROM, CD-ROM XA, CD-Audio, CD-Extra, CD-Text, CD-I Ready, CD-Bridge, Photo-CD, Video-CD, Hybrid-CD
Write methodsDiffersTrack-at-Once, Disc-at-Once, Multisession, Packet Writing (fixed & variable packet), CD Digital Audio, Direct-Over-Write on CD-RW, Test WriteDAO (disc at once), SAO (session at once), TAO (track at once) with zero gap, variable or fixed packet, multisession
Dimensions (WxDxH)Differs178 x 146 x 42 mm129 x 128 x 12.7 mm
DVD+R speedKnown for one16x
DVD+RW speedKnown for one16x
DVD-R speedKnown for one16x
DVD-RW speedKnown for one16x
Double Layer DVD write speedKnown for one8x
Access timeidentical
DVD drive average random access timeKnown for one190 ms
Access timeKnown for one190 ms
CD-ROM drive average random access timeKnown for one190 ms
Record modesidentical
Disc-at-once (DAO)Known for oneYes
Fixed packetKnown for oneYes
Multi sessionKnown for oneYes
Session-at-once (SAO)Known for oneYes
Track-at-once (TAO)Known for oneYes
Variable packetKnown for oneYes

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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