Product comparison · 2 optical disc drives

Lenovo ThinkPad Ultrabay Enhanced Blu-ray Burner vs Philips Internal drive DVD 20x ReWriter

Key differences

Drive device, buffer size
- ThinkPad Ultrabay Enhanced Blu-ray Burner:8 MB
- Internal drive DVD 20x ReWriter:2 MB
CD write speed
- ThinkPad Ultrabay Enhanced Blu-ray Burner:8x
- Internal drive DVD 20x ReWriter:48x
CD rewrite speed
- ThinkPad Ultrabay Enhanced Blu-ray Burner:4x
- Internal drive DVD 20x ReWriter:32x
CD-RW write speed
- ThinkPad Ultrabay Enhanced Blu-ray Burner:4x
- Internal drive DVD 20x ReWriter:32x
DVD+R Double Layer write speed
- ThinkPad Ultrabay Enhanced Blu-ray Burner:2.4x
- Internal drive DVD 20x ReWriter:16x
DVD+R write speed
- ThinkPad Ultrabay Enhanced Blu-ray Burner:8x
- Internal drive DVD 20x ReWriter:20x
DVD+RW write speed
- ThinkPad Ultrabay Enhanced Blu-ray Burner:4x
- Internal drive DVD 20x ReWriter:8x
DVD-R Double Layer write speed
- ThinkPad Ultrabay Enhanced Blu-ray Burner:2x
- Internal drive DVD 20x ReWriter:12x

Differences highlightedShow differences only

Comparison of ThinkPad Ultrabay Enhanced Blu-ray Burner, Internal drive DVD 20x ReWriter
25 specifications	A Lenovo ThinkPad Ultrabay Enhanced Blu-ray Burner View product	B Philips Internal drive DVD 20x ReWriter View product
Performance1 differ
Drive device, buffer sizeDiffers	8 MB	2 MB
Writing speed9 differ
CD write speedDiffers	8x	48x
CD rewrite speedDiffers	4x	32x
CD-R write speedKnown for one	8x	Unknown — not stated by the source
CD-RW write speedDiffers	4x	32x
BD-R write speedKnown for one	2x	Unknown — not stated by the source
DVD+R Double Layer write speedDiffers	2.4x	16x
DVD+R write speedDiffers	8x	20x
DVD+RW write speedDiffers	4x	8x
DVD-R Double Layer write speedDiffers	2x	12x
DVD-R write speedDiffers	8x	20x
DVD-RW write speedDiffers	4x	6x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	12x
Reading speed2 differ
CD read speedDiffers	24x	48x
CD-ROM read speedKnown for one	24x	Unknown — not stated by the source
BD-ROM read speedKnown for one	1.6x	Unknown — not stated by the source
DVD-ROM read speedDiffers	8x	16x
Access timeidentical
DVD drive average random access timeKnown for one	180 ms	Unknown — not stated by the source
BD-ROM average random access timeKnown for one	300 ms	Unknown — not stated by the source
CD-ROM drive average random access timeKnown for one	150 ms	Unknown — not stated by the source
Weight & dimensionsidentical
HeightKnown for one	12.7 mm	Unknown — not stated by the source
WeightKnown for one	150 g	Unknown — not stated by the source
Other featuresidentical
Dimensions (WxDxH)Known for one	128 x 129 x 12.7 mm	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.