Product comparison · 2 optical disc drives

LG DVD+/-RW 20x SecureDisk IDE Barebulk, Black vs LG GSAH55N optical disc drive Internal

8specifications compared
2differ
6identical
30known for one product only

Key differences

Interface
- DVD+/-RW 20x SecureDisk IDE Barebulk, Black:IDE/ATA
- GSAH55N optical disc drive Internal:EIDE/ATA
Dimensions (WxDxH)
- DVD+/-RW 20x SecureDisk IDE Barebulk, Black:148 x 42 x 17 mm
- GSAH55N optical disc drive Internal:146 x 41.3 x 165 mm

Side by side

Differences highlightedShow differences only

Comparison of DVD+/-RW 20x SecureDisk IDE Barebulk, Black, GSAH55N
38 specifications	A LG DVD+/-RW 20x SecureDisk IDE Barebulk, Black View product	B LG GSAH55N optical disc drive Internal Model GSAH55N View product
Designidentical
Internal	Yes	Yes
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
Performance1 differ
InterfaceDiffers	IDE/ATA	EIDE/ATA
Drive device, buffer size	2 MB	2 MB
Writing speedidentical
CD write speed	48x	48x
CD rewrite speed	32x	32x
DVD+R Double Layer write speedKnown for one	Unknown — not stated by the source	10x
DVD+R write speedKnown for one	Unknown — not stated by the source	20x
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	10x
DVD-R write speedKnown for one	Unknown — not stated by the source	20x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	12x
DVD-RW write speedKnown for one	Unknown — not stated by the source	6x
Reading speedidentical
CD read speed	48x	48x
CD-ROM read speedKnown for one	Unknown — not stated by the source	48x
CD-RW read speedKnown for one	Unknown — not stated by the source	48x
DVD+R read speedKnown for one	Unknown — not stated by the source	16x
DVD-R Double Layer read speedKnown for one	Unknown — not stated by the source	16x
DVD-R read speedKnown for one	Unknown — not stated by the source	16x
DVD-RAM read speedKnown for one	Unknown — not stated by the source	12x
DVD-ROM read speedKnown for one	Unknown — not stated by the source	16x
DVD-RW read speedKnown for one	Unknown — not stated by the source	16x
DVD+R Double Layer read speedKnown for one	Unknown — not stated by the source	16x
DVD+RW read speedKnown for one	Unknown — not stated by the source	16x
Access timeidentical
DVD drive average random access timeKnown for one	Unknown — not stated by the source	140 ms
CD-ROM drive average random access time	120 ms	120 ms
Other features1 differ
Dimensions (WxDxH)Differs	148 x 42 x 17 mm	146 x 41.3 x 165 mm
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows Millennium Edition (Me) Windows Vista x86, x64 Windows 2000 Professional Windows XP Home Edition, Professional Media Center Edition
Write methodsKnown for one	RW	Unknown — not stated by the source
Maximum data transfer rateKnown for one	58.98 Mbit/s	Unknown — not stated by the source
Record modesidentical
Disc-at-once (DAO)Known for one	Yes	Unknown — not stated by the source
Multi sessionKnown for one	Yes	Unknown — not stated by the source
Over-burn writingKnown for one	Yes	Unknown — not stated by the source
Packet writingKnown for one	Yes	Unknown — not stated by the source
Sequential writingKnown for one	Yes	Unknown — not stated by the source
Session-at-once (SAO)Known for one	Yes	Unknown — not stated by the source
Track-at-once (TAO)Known for one	Yes	Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	800 g	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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