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Product comparison · 2 optical disc drives

LG GDRH20N DVD rom SATA vs LG Super Multi Blue BD Rewriter, Beige

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  • 12specifications compared
  • 9differ
  • 3identical
  • 33known for one product only

Key differences

  • Interface
    • Serial ATA
    • EIDE/ATA
  • CD write speed
    • 48x
    • 8x
  • CD rewrite speed
    • 32x
    • 10x
  • CD read speed
    • 52x
    • 40x
  • DVD drive average random access time
    • 160 ms
    • 180 ms
  • CD-ROM drive average random access time
    • 140 ms
    • 170 ms
  • Weight
    • 700 g
    • 970 g
  • Dimensions (WxDxH)
    • 146 x 165 x 41.3 mm
    • 146 x 200 x 41.3 mm

Side by side

Differences highlightedShow differences only
45 specifications
A

LG

GDRH20N DVD rom SATAView product
B

LG

Super Multi Blue BD Rewriter, BeigeView product
Designidentical
InternalYesYes
Product colourKnown for oneBeige
Disc loading typeTrayTray
MountingKnown for oneHorizontal
Performance1 differ
InterfaceDiffersSerial ATAEIDE/ATA
Drive device, buffer sizeKnown for one2 MB
DVD-ROM transfer rate (sustained mode)Known for one22.1 MB/s
Writing speed2 differ
CD write speedDiffers48x8x
CD rewrite speedDiffers32x10x
CD-R write speedKnown for one8x
CD-RW write speedKnown for one10x
BD-R write speedKnown for one4x
BD-RE write speedKnown for one2x
DVD+R Double Layer write speedKnown for one4x
DVD+R write speedKnown for one12x
DVD+RW write speedKnown for one8x
DVD-R Double Layer write speedKnown for one4x
DVD-R write speedKnown for one12x
DVD-RAM write speedKnown for one5x
DVD-RW write speedKnown for one6x
Reading speed1 differ
CD read speedDiffers52x40x
CD-R read speedKnown for one40x
CD-ROM read speedKnown for one40x
CD-RW read speedKnown for one40x
BD-ROM read speedKnown for one4.8x
DVD+R read speedKnown for one10x
DVD-R Double Layer read speedKnown for one8x
DVD-R read speedKnown for one10x
DVD-RAM read speedKnown for one5x
DVD-ROM read speed16x16x
DVD-RW read speedKnown for one10x
DVD+R Double Layer read speedKnown for one8x
DVD+RW read speedKnown for one10x
Access time2 differ
DVD drive average random access timeDiffers160 ms180 ms
BD-ROM average random access timeKnown for one170 ms
CD-ROM drive average random access timeDiffers140 ms170 ms
Record modesidentical
Disc-at-once (DAO)Known for oneYes
Packet writingKnown for oneYes
Session-at-once (SAO)Known for oneYes
Track-at-once (TAO)Known for oneYes
Weight & dimensions1 differ
WeightDiffers700 g970 g
Other features2 differ
Dimensions (WxDxH)Differs146 x 165 x 41.3 mm146 x 200 x 41.3 mm
Compatible operating systemsDiffersWindows 95, 98, 2K, ME, NT 4.0 or Later, XP, Vista, 2003 server, Linux Slackware Ver 3.10, Solaris Ver 2.4Windows 2000 Pro/XP Home/XP Pro
Maximum data transfer rateKnown for one172.632 Mbit/s
Buffer sizeKnown for one198 KB

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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