Product comparison · 2 optical disc drives

LG BP55EB40 optical disc drive Blu-Ray RW Black vs LG DH18NS61 optical disc drive Internal DVD-ROM Black

20specifications compared
16differ
4identical
36known for one product only

Key differences

Internal
- BP55EB40 optical disc drive Blu-Ray RW Black:No
- DH18NS61 optical disc drive Internal DVD-ROM Black:Yes
Purpose
- BP55EB40 optical disc drive Blu-Ray RW Black:Desktop/Laptop
- DH18NS61 optical disc drive Internal DVD-ROM Black:Desktop
Optical drive type
- BP55EB40 optical disc drive Blu-Ray RW Black:Blu-Ray RW
- DH18NS61 optical disc drive Internal DVD-ROM Black:DVD-ROM
Interface
- BP55EB40 optical disc drive Blu-Ray RW Black:USB 2.0
- DH18NS61 optical disc drive Internal DVD-ROM Black:Serial ATA
Drive device, buffer size
- BP55EB40 optical disc drive Blu-Ray RW Black:4 MB
- DH18NS61 optical disc drive Internal DVD-ROM Black:0.2 MB
CD read speed
- BP55EB40 optical disc drive Blu-Ray RW Black:24x
- DH18NS61 optical disc drive Internal DVD-ROM Black:48x
CD-ROM read speed
- BP55EB40 optical disc drive Blu-Ray RW Black:24x
- DH18NS61 optical disc drive Internal DVD-ROM Black:48x
DVD-ROM read speed
- BP55EB40 optical disc drive Blu-Ray RW Black:8x
- DH18NS61 optical disc drive Internal DVD-ROM Black:18x

Side by side

Differences highlightedShow differences only

Comparison of BP55EB40, DH18NS61
56 specifications	A LG BP55EB40 optical disc drive Blu-Ray RW Black Model BP55EB40 View product	B LG DH18NS61 optical disc drive Internal DVD-ROM Black Model DH18NS61 View product
Design1 differ
InternalDiffers	No	Yes
Product colour	Black	Black
MountingKnown for one	Unknown — not stated by the source	Vertical/Horizontal
Performance4 differ
PurposeDiffers	Desktop/Laptop	Desktop
Optical drive typeDiffers	Blu-Ray RW	DVD-ROM
InterfaceDiffers	USB 2.0	Serial ATA
Drive device, buffer sizeDiffers	4 MB	0.2 MB
Writing speedidentical
CD write speedKnown for one	24x	Unknown — not stated by the source
CD rewrite speedKnown for one	24x	Unknown — not stated by the source
CD-R write speedKnown for one	24x	Unknown — not stated by the source
CD-RW write speedKnown for one	24x	Unknown — not stated by the source
BD-R Dual Layer write speedKnown for one	6x	Unknown — not stated by the source
BD-R write speedKnown for one	8x	Unknown — not stated by the source
BD-RE Dual Layer write speedKnown for one	2x	Unknown — not stated by the source
BD-RE rewrite speedKnown for one	2x	Unknown — not stated by the source
DVD+R Double Layer write speedKnown for one	6x	Unknown — not stated by the source
DVD+RW write speedKnown for one	8x	Unknown — not stated by the source
DVD-R Double Layer write speedKnown for one	6x	Unknown — not stated by the source
DVD-R write speedKnown for one	8x	Unknown — not stated by the source
DVD-RAM write speedKnown for one	5x	Unknown — not stated by the source
DVD-RW write speedKnown for one	6x	Unknown — not stated by the source
Reading speed3 differ
CD read speedDiffers	24x	48x
CD-R read speedKnown for one	24x	Unknown — not stated by the source
CD-ROM read speedDiffers	24x	48x
CD-RW read speedKnown for one	24x	Unknown — not stated by the source
BD-R Dual Layer read speedKnown for one	6x	Unknown — not stated by the source
BD-R read speedKnown for one	6x	Unknown — not stated by the source
BD-RE Dual Layer read speedKnown for one	6x	Unknown — not stated by the source
BD-RE read speedKnown for one	6x	Unknown — not stated by the source
BD-ROM read speedKnown for one	6x	Unknown — not stated by the source
DVD+R read speedKnown for one	8x	Unknown — not stated by the source
DVD-R Double Layer read speedKnown for one	8x	Unknown — not stated by the source
DVD-R read speedKnown for one	8x	Unknown — not stated by the source
DVD-RAM read speed	5x	5x
DVD-ROM read speedDiffers	8x	18x
DVD-RW read speedKnown for one	8x	Unknown — not stated by the source
DVD+R Double Layer read speedKnown for one	8x	Unknown — not stated by the source
DVD+RW read speedKnown for one	8x	Unknown — not stated by the source
Access time3 differ
DVD drive average random access timeDiffers	200 ms	100 ms
BD-ROM average random access timeKnown for one	230 ms	Unknown — not stated by the source
CD-ROM drive average random access timeDiffers	200 ms	90 ms
DVD-RAM access timeDiffers	230 ms	130 ms
Record modesidentical
Disc-at-once (DAO)Known for one	Yes	Unknown — not stated by the source
Layer Jump RecordingKnown for one	Yes	Unknown — not stated by the source
Packet writingKnown for one	Yes	Unknown — not stated by the source
Random writeKnown for one	Yes	Unknown — not stated by the source
Sequential writingKnown for one	Yes	Unknown — not stated by the source
Session-at-once (SAO)Known for one	Yes	Unknown — not stated by the source
Track-at-once (TAO)Known for one	Yes	Unknown — not stated by the source
System requirementsidentical
Windows operating systems supported	Yes	Yes
Operational conditions1 differ
Operating temperature (T-T)Differs	5 - 40 °C	5 - 45 °C
Storage temperature (T-T)	-30 - 60 °C	-30 - 60 °C
Weight & dimensions4 differ
WidthDiffers	144 mm	146 mm
DepthDiffers	156 mm	165 mm
HeightDiffers	14.6 mm	41.3 mm
WeightDiffers	270 g	700 g

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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