Product comparison · 2 optical disc drives

LG GSA-H55L optical disc drive Internal vs NEC AD-7633 black

19specifications compared
13differ
6identical
13known for one product only

Key differences

Interface
- GSA-H55L optical disc drive Internal:IDE/ATA
- AD-7633 black:EIDE/ATA
CD write speed
- GSA-H55L optical disc drive Internal:48x
- AD-7633 black:24x
CD rewrite speed
- GSA-H55L optical disc drive Internal:40x
- AD-7633 black:16x
DVD+R Double Layer write speed
- GSA-H55L optical disc drive Internal:10x
- AD-7633 black:4x
DVD+R write speed
- GSA-H55L optical disc drive Internal:20x
- AD-7633 black:8x
DVD-R Double Layer write speed
- GSA-H55L optical disc drive Internal:10x
- AD-7633 black:4x
DVD-R write speed
- GSA-H55L optical disc drive Internal:20x
- AD-7633 black:8x
DVD-RAM write speed
- GSA-H55L optical disc drive Internal:12x
- AD-7633 black:5x

Side by side

Differences highlightedShow differences only

Comparison of GSA-H55L, AD-7633 black
32 specifications	A LG GSA-H55L optical disc drive Internal Model GSA-H55L View product	B NEC AD-7633 black View product
Designidentical
Internal	Yes	Yes
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
Product colourKnown for one	Unknown — not stated by the source	Black
Performance1 differ
InterfaceDiffers	IDE/ATA	EIDE/ATA
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Drive device, buffer sizeKnown for one	Unknown — not stated by the source	2 MB
Writing speed7 differ
CD write speedDiffers	48x	24x
CD rewrite speedDiffers	40x	16x
DVD+R Double Layer write speedDiffers	10x	4x
DVD+R write speedDiffers	20x	8x
DVD+RW write speed	8x	8x
DVD-R Double Layer write speedDiffers	10x	4x
DVD-R write speedDiffers	20x	8x
DVD-RAM write speedDiffers	12x	5x
DVD-RW write speed	6x	6x
Reading speed1 differ
CD read speedDiffers	48x	24x
CD-R 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-RAM read speedKnown for one	16x	Unknown — not stated by the source
DVD-ROM read speedKnown for one	16x	Unknown — not stated by the source
DVD read speedKnown for one	Unknown — not stated by the source	8x
Access time2 differ
DVD drive average random access timeDiffers	140 ms	190 ms
CD-ROM drive average random access timeDiffers	120 ms	190 ms
Record modesidentical
Disc-at-once (DAO)	Yes	Yes
Packet writingKnown for one	Yes	Unknown — not stated by the source
Random writeKnown for one	Yes	Unknown — not stated by the source
Sequential writingKnown for one	Yes	Unknown — not stated by the source
Session-at-once (SAO)	Yes	Yes
Track-at-once (TAO)	Yes	Yes
Multi sessionKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions1 differ
WeightDiffers	780 g	160 g
Other features1 differ
Dimensions (WxDxH)Differs	146 x 41.3 x 165 mm	12.7 x 128 x 129 mm

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.

More optical disc drive comparisons

All optical disc drive comparisons