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
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-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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