LG CT30N optical disc drive Internal Black vs LG GE24NU21 optical disc drive DVD±R/RW Black

Comparison of CT30N, GE24NU21

32 specifications	A LG CT30N optical disc drive Internal Black Model CT30N View product	B LG GE24NU21 optical disc drive DVD±R/RW Black Model GE24NU21 View product
Design1 differ
InternalDiffers	Yes	No
Product colour	Black	Black
CertificationKnown for one	—Unknown — not stated by the source	UL, CSA, TUV, SEMKO, CE
Performanceidentical
Optical drive typeKnown for one	—Unknown — not stated by the source	DVD±R/RW
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
InterfaceKnown for one	Serial ATA	—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 speed	8x	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
DVD-RW write speedKnown for one	8x	—Unknown — not stated by the source
Reading speedidentical
CD read speedKnown for one	—Unknown — not stated by the source	48x
BD-ROM read speedKnown for one	6x	—Unknown — not stated by the source
Access timeidentical
DVD drive average random access timeKnown for one	—Unknown — not stated by the source	145 ms
CD-ROM drive average random access timeKnown for one	—Unknown — not stated by the source	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 & dimensionsidentical
WeightKnown for one	—Unknown — not stated by the source	1.5 kg
Other featuresidentical
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)Known for one	—Unknown — not stated by the source	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

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.