Product comparison · 2 optical disc drives

LG BU20N optical disc drive Internal Blu-Ray DVD Combo Black vs LG GP57ES40 optical disc drive DVD±RW Black, Silver

31specifications compared
14differ
17identical
25known for one product only

Key differences

Internal
- BU20N optical disc drive Internal Blu-Ray DVD Combo Black:Yes
- GP57ES40 optical disc drive DVD±RW Black, Silver:No
Product colour
- BU20N optical disc drive Internal Blu-Ray DVD Combo Black:Black
- GP57ES40 optical disc drive DVD±RW Black, Silver:Black, Silver
Optical drive type
- BU20N optical disc drive Internal Blu-Ray DVD Combo Black:Blu-Ray DVD Combo
- GP57ES40 optical disc drive DVD±RW Black, Silver:DVD±RW
Interface
- BU20N optical disc drive Internal Blu-Ray DVD Combo Black:Serial ATA
- GP57ES40 optical disc drive DVD±RW Black, Silver:USB 2.0
Drive device, buffer size
- BU20N optical disc drive Internal Blu-Ray DVD Combo Black:4 MB
- GP57ES40 optical disc drive DVD±RW Black, Silver:1 MB
DVD+R Double Layer write speed
- BU20N optical disc drive Internal Blu-Ray DVD Combo Black:6x
- GP57ES40 optical disc drive DVD±RW Black, Silver:8x
DVD-R write speed
- BU20N optical disc drive Internal Blu-Ray DVD Combo Black:8x
- GP57ES40 optical disc drive DVD±RW Black, Silver:6x
CD-ROM drive average random access time
- BU20N optical disc drive Internal Blu-Ray DVD Combo Black:200 ms
- GP57ES40 optical disc drive DVD±RW Black, Silver:140 ms

Side by side

Differences highlightedShow differences only

Comparison of BU20N, GP57ES40
56 specifications	A LG BU20N optical disc drive Internal Blu-Ray DVD Combo Black Model BU20N View product	B LG GP57ES40 optical disc drive DVD±RW Black, Silver Model GP57ES40 View product
Design2 differ
InternalDiffers	Yes	No
Product colourDiffers	Black	Black, Silver
CertificationKnown for one	Safety UL, C-UL, TÜV, SEMKO, EMC, Laser Safety	Unknown — not stated by the source
Disc loading typeKnown for one	Unknown — not stated by the source	Tray
Performance4 differ
PurposeKnown for one	Desktop	Unknown — not stated by the source
Optical drive typeDiffers	Blu-Ray DVD Combo	DVD±RW
Disc types supportedDiffers	BD, BD-R, BD-R DL, BD-RE, BD-RE DL, BD-ROM, CD, CD-R, CD-ROM, CD-RW, DVD, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-R DL, DVD-RAM, DVD-ROM, DVD-RW	CD-R, CD-ROM, CD-RW, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-RAM, DVD-ROM, DVD-RW
InterfaceDiffers	Serial ATA	USB 2.0
Drive device, buffer sizeDiffers	4 MB	1 MB
DVD-ROM transfer rate (sustained mode)Known for one	11.08 MB/s	Unknown — not stated by the source
Writing speed2 differ
CD-RW write speedKnown for one	16x	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	6x	Unknown — not stated by the source
BD-RE Dual Layer write speedKnown for one	2x	Unknown — not stated by the source
BD-RE write speedKnown for one	2x	Unknown — not stated by the source
DVD+R Double Layer write speedDiffers	6x	8x
DVD-R write speedDiffers	8x	6x
Reading speedidentical
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-ROM read speedKnown for one	8x	Unknown — not stated by the source
DVD-R Double Layer read speedKnown for one	Unknown — not stated by the source	6x
Access time1 differ
DVD drive average random access timeKnown for one	200 ms	Unknown — not stated by the source
BD-ROM average random access timeKnown for one	250 ms	Unknown — not stated by the source
CD-ROM drive average random access timeDiffers	200 ms	140 ms
DVD-RAM access timeKnown for one	Unknown — not stated by the source	360 ms
System requirements1 differ
Windows operating systems supportedDiffers	Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 8, Win	Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows Vista
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions4 differ
WidthDiffers	128 mm	144 mm
DepthDiffers	127 mm	14 mm
HeightDiffers	9.5 mm	137.5 mm
WeightDiffers	122 g	200 g
Other featuresidentical
Compliance certificatesKnown for one	RoHS	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 50 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-30 - 60 °C
Packaging contentidentical
Quantity per packKnown for one	Unknown — not stated by the source	1 pc(s)
Bundled softwareKnown for one	Unknown — not stated by the source	LG Burning Tools, PowerDVD 7 (trial version), PowerProducer, Power Backup, Norton Internet Security (60 days trial), YouCam 1.0

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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