Product comparison · 2 optical disc drives

Lenovo CD-ROM USB PORTABLE DRIVE vs Philips Combo Internal Drive, grey

Key differences

Internal
- CD-ROM USB PORTABLE DRIVE:No
- Combo Internal Drive, grey:Yes
Drive device, buffer size
- CD-ROM USB PORTABLE DRIVE:0.125 MB
- Combo Internal Drive, grey:2 MB
CD read speed
- CD-ROM USB PORTABLE DRIVE:10x
- Combo Internal Drive, grey:40x
Access time
- CD-ROM USB PORTABLE DRIVE:250 ms
- Combo Internal Drive, grey:125 ms

Differences highlightedShow differences only

Comparison of CD-ROM USB PORTABLE DRIVE, Combo Internal Drive, grey
15 specifications	A Lenovo CD-ROM USB PORTABLE DRIVE View product	B Philips Combo Internal Drive, grey View product
Design1 differ
InternalDiffers	No	Yes
Product colourKnown for one	Unknown — not stated by the source	Grey
Performance1 differ
Drive device, buffer sizeDiffers	0.125 MB	2 MB
Reading speed1 differ
CD read speedDiffers	10x	40x
DVD-ROM read speedKnown for one	Unknown — not stated by the source	12x
Access time1 differ
Access timeDiffers	250 ms	125 ms
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	8 - 80%	Unknown — not stated by the source
Operating temperature (T-T)Known for one	10 - 50 °C	Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	275 g	Unknown — not stated by the source
Other featuresidentical
Media types supportedKnown for one	CD Enhanced, CD-ROM, CD-R, CD-DA, CD-I, CD-ROM Mode - 1 Data Disc, CD-ROM Mode - 2 Data Disc, CD-ROM XA, CD-RW, CD-Text, Photo CD, Video CD	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	130 x 146 x 15 mm	Unknown — not stated by the source
Compatible operating systemsKnown for one	Microsoft Windows 98, Windows 2000, Windows ME	Unknown — not stated by the source
I/O portsKnown for one	USB	Unknown — not stated by the source
Writing speedidentical
CD write speedKnown for one	Unknown — not stated by the source	32x
CD rewrite speedKnown for one	Unknown — not stated by the source	10x

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.