Product comparison · 2 optical disc drives

NEC AD-7201S optical disc drive Internal White vs Philips 20x DVD±R SATA

12specifications compared
2differ
10identical
30known for one product only

Key differences

Weight
- AD-7201S optical disc drive Internal White:690 g
- 20x DVD±R SATA:900 g
Dimensions (WxDxH)
- AD-7201S optical disc drive Internal White:148 x 42 x 170 mm
- 20x DVD±R SATA:146 x 170 x 42 mm

Side by side

Differences highlightedShow differences only

Comparison of AD-7201S, 20x DVD±R SATA
42 specifications	A NEC AD-7201S optical disc drive Internal White Model AD-7201S View product	B Philips 20x DVD±R SATA View product
Designidentical
Internal	Yes	Yes
Product colourKnown for one	White	Unknown — not stated by the source
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
Performanceidentical
InterfaceKnown for one	Serial ATA	Unknown — not stated by the source
LightScribeKnown for one	Yes	Unknown — not stated by the source
Drive device, buffer sizeKnown for one	2 MB	Unknown — not stated by the source
Burst transfer rateKnown for one	150 MB/s	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	70000 h
Writing speedidentical
CD write speed	48x	48x
CD rewrite speed	32x	32x
CD-R write speed	48x	48x
CD-RW write speedKnown for one	32x	Unknown — not stated by the source
DVD+R Double Layer write speedKnown for one	8x	Unknown — not stated by the source
DVD+R write speed	20x	20x
DVD+RW write speedKnown for one	8x	Unknown — not stated by the source
DVD-R Double Layer write speedKnown for one	12x	Unknown — not stated by the source
DVD-R write speed	20x	20x
DVD-RAM write speed	12x	12x
DVD-RW write speedKnown for one	6x	Unknown — not stated by the source
DVD-R9 write speedKnown for one	Unknown — not stated by the source	8x
Reading speedidentical
CD read speed	48x	48x
DVD-ROM read speedKnown for one	16x	Unknown — not stated by the source
Access timeidentical
DVD drive average random access time	160 ms	160 ms
CD-ROM drive average random access time	140 ms	140 ms
Record modesidentical
Disc-at-once (DAO)Known for one	Yes	Unknown — not stated by the source
Fixed packetKnown for one	Yes	Unknown — not stated by the source
Multi sessionKnown 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
Variable packetKnown for one	Yes	Unknown — not stated by the source
Weight & dimensions1 differ
WeightDiffers	690 g	900 g
Other features1 differ
Dimensions (WxDxH)Differs	148 x 42 x 170 mm	146 x 170 x 42 mm
Minimum RAMKnown for one	Unknown — not stated by the source	128 MB
Minimum processorKnown for one	Unknown — not stated by the source	Pentium 4 1.3GHz
Minimum storage drive spaceKnown for one	Unknown — not stated by the source	9 GB
Compatible operating systemsKnown for one	Unknown — not stated by the source	Microsoft Windows 2000 / XP / Vista
Signal-to-Noise Ratio (SNR)Known for one	Unknown — not stated by the source	75 dB
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	15 - 80%
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 50 °C
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	15 - 95%
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 65 °C

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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