LG GE24LU21 optical disc drive DVD-RW Black vs LG GE24NU21 optical disc drive DVD±R/RW Black

Comparison of GE24LU21, GE24NU21

32 specifications	A LG GE24LU21 optical disc drive DVD-RW Black Model GE24LU21 View product	B LG GE24NU21 optical disc drive DVD±R/RW Black Model GE24NU21 View product
Designidentical
Internal	No	No
Product colour	Black	Black
Disc loading typeKnown for one	Tray	—Unknown — not stated by the source
Certification	UL, CSA, TUV, SEMKO, CE	UL, CSA, TUV, SEMKO, CE
Performance1 differ
Optical drive typeDiffers	DVD-RW	DVD±R/RW
InterfaceKnown for one	IDE/ATA	—Unknown — not stated by the source
LightScribeKnown for one	Yes	—Unknown — not stated by the source
Drive device, buffer size	2 MB	2 MB
Mean time between failures (MTBF)	100000 h	100000 h
Writing speedidentical
CD write speed	48x	48x
CD rewrite speed	32x	32x
CD-R write speed	48x	48x
CD-RW write speed	32x	32x
DVD+R Double Layer write speed	16x	16x
DVD+R write speed	24x	24x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speed	12x	12x
DVD-R write speed	24x	24x
DVD-RAM write speed	12x	12x
Reading speedidentical
CD read speed	48x	48x
Access timeidentical
DVD drive average random access time	145 ms	145 ms
CD-ROM drive average random access time	125 ms	125 ms
Record modesidentical
Disc-at-once (DAO)	Yes	Yes
Multi session	Yes	Yes
Packet writing	Yes	Yes
Session-at-once (SAO)	Yes	Yes
Track-at-once (TAO)	Yes	Yes
Weight & dimensionsidentical
Weight	1.5 kg	1.5 kg
Other featuresidentical
Media types supported	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	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)	160 x 230 x 50 mm	160 x 230 x 50 mm
Number of optical discs	1 discs	1 discs
Total storage capacity	8.5 GB	8.5 GB

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.