Product comparison · 2 optical disc drives

LG DH18NS40 optical disc drive Internal DVD±R/RW Black vs LG GE24LU21 optical disc drive DVD-RW Black

11specifications compared
8differ
3identical
33known for one product only

Key differences

Internal
- DH18NS40 optical disc drive Internal DVD±R/RW Black:Yes
- GE24LU21 optical disc drive DVD-RW Black:No
Certification
- DH18NS40 optical disc drive Internal DVD±R/RW Black:RoHS
- GE24LU21 optical disc drive DVD-RW Black:UL, CSA, TUV, SEMKO, CE
Optical drive type
- DH18NS40 optical disc drive Internal DVD±R/RW Black:DVD±R/RW
- GE24LU21 optical disc drive DVD-RW Black:DVD-RW
Interface
- DH18NS40 optical disc drive Internal DVD±R/RW Black:Serial ATA
- GE24LU21 optical disc drive DVD-RW Black:IDE/ATA
DVD drive average random access time
- DH18NS40 optical disc drive Internal DVD±R/RW Black:95 ms
- GE24LU21 optical disc drive DVD-RW Black:145 ms
CD-ROM drive average random access time
- DH18NS40 optical disc drive Internal DVD±R/RW Black:90 ms
- GE24LU21 optical disc drive DVD-RW Black:125 ms
Weight
- DH18NS40 optical disc drive Internal DVD±R/RW Black:700 g
- GE24LU21 optical disc drive DVD-RW Black:1.5 kg
Dimensions (WxDxH)
- DH18NS40 optical disc drive Internal DVD±R/RW Black:146 x 172 x 41.3 mm
- GE24LU21 optical disc drive DVD-RW Black:160 x 230 x 50 mm

Side by side

Differences highlightedShow differences only

Comparison of DH18NS40, GE24LU21
44 specifications	A LG DH18NS40 optical disc drive Internal DVD±R/RW Black Model DH18NS40 View product	B LG GE24LU21 optical disc drive DVD-RW Black Model GE24LU21 View product
Design2 differ
InternalDiffers	Yes	No
Product colour	Black	Black
Disc loading type	Tray	Tray
CertificationDiffers	RoHS	UL, CSA, TUV, SEMKO, CE
Performance2 differ
Optical drive typeDiffers	DVD±R/RW	DVD-RW
InterfaceDiffers	Serial ATA	IDE/ATA
LightScribeKnown for one	Unknown — not stated by the source	Yes
Drive device, buffer sizeKnown for one	Unknown — not stated by the source	2 MB
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	100000 h
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Writing speedidentical
CD write speedKnown for one	Unknown — not stated by the source	48x
CD rewrite speedKnown for one	Unknown — not stated by the source	32x
CD-R write speedKnown for one	Unknown — not stated by the source	48x
CD-RW write speedKnown for one	Unknown — not stated by the source	32x
DVD+R Double Layer write speedKnown for one	Unknown — not stated by the source	16x
DVD+R write speedKnown for one	Unknown — not stated by the source	24x
DVD+RW write speedKnown for one	Unknown — not stated by the source	8x
DVD-R Double Layer write speedKnown for one	Unknown — not stated by the source	12x
DVD-R write speedKnown for one	Unknown — not stated by the source	24x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	12x
Reading speedidentical
CD read speed	48x	48x
CD-ROM read speedKnown for one	48x	Unknown — not stated by the source
CD-RW read speedKnown for one	40x	Unknown — not stated by the source
DVD+R read speedKnown for one	18x	Unknown — not stated by the source
DVD-R Double Layer read speedKnown for one	12x	Unknown — not stated by the source
DVD-R read speedKnown for one	18x	Unknown — not stated by the source
DVD-RAM read speedKnown for one	12x	Unknown — not stated by the source
DVD-ROM read speedKnown for one	18x	Unknown — not stated by the source
DVD-RW read speedKnown for one	13x	Unknown — not stated by the source
DVD+R Double Layer read speedKnown for one	12x	Unknown — not stated by the source
DVD+RW read speedKnown for one	13x	Unknown — not stated by the source
Access time2 differ
DVD drive average random access timeDiffers	95 ms	145 ms
CD-ROM drive average random access timeDiffers	90 ms	125 ms
Record modesidentical
Disc-at-once (DAO)Known for one	Unknown — not stated by the source	Yes
Multi sessionKnown for one	Unknown — not stated by the source	Yes
Packet writingKnown for one	Unknown — not stated by the source	Yes
Session-at-once (SAO)Known for one	Unknown — not stated by the source	Yes
Track-at-once (TAO)Known for one	Unknown — not stated by the source	Yes
Weight & dimensions1 differ
WeightDiffers	700 g	1.5 kg
Other features1 differ
Media types supportedKnown for one	Unknown — not stated by the source	DVD±R9, DVD±R, DVD±RW, DVD-RAM, CD-R, CD-RW, DVD-ROM, CD Extra, CD-ROM, CD-ROM XA, CD-I, CD-DA, CD Photo
Dimensions (WxDxH)Differs	146 x 172 x 41.3 mm	160 x 230 x 50 mm
Number of optical discsKnown for one	Unknown — not stated by the source	1 discs
Total storage capacityKnown for one	Unknown — not stated by the source	8.5 GB
Compatible operating systemsKnown for one	Windows XP/Vista/7	Unknown — not stated by the source

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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