Product comparison · 2 optical disc drives

Lenovo ThinkPad DVD Burner Ultrabay Enhanced Drive (Serial ATA) vs Lenovo ThinkPad DVD-ROM Ultrabay Slim Drive Serial ATA

4specifications compared
0differ
4identical
21known for one product only

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Comparison of ThinkPad DVD Burner Ultrabay Enhanced Drive (Serial ATA), ThinkPad DVD-ROM Ultrabay Slim Drive Serial ATA
25 specifications	A Lenovo ThinkPad DVD Burner Ultrabay Enhanced Drive (Serial ATA)View product	B Lenovo ThinkPad DVD-ROM Ultrabay Slim Drive Serial ATA View product
Designidentical
Internal	Yes	Yes
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
CertificationKnown for one	Unknown — not stated by the source	BSMI, C-Tick, CE, CSA, MIC (Korea), TÜV, UL
Performanceidentical
Interface	Serial ATA	Serial ATA
Drive device, buffer size	2 MB	2 MB
Writing speedidentical
CD write speedKnown for one	24x	Unknown — not stated by the source
CD rewrite speedKnown for one	24x	Unknown — not stated by the source
DVD+R Double Layer write speedKnown for one	6x	Unknown — not stated by the source
DVD+R write speedKnown for one	8x	Unknown — not stated by the source
DVD+RW write speedKnown for one	8x	Unknown — not stated by the source
DVD-R Double Layer write speedKnown for one	6x	Unknown — not stated by the source
DVD-R write speedKnown for one	8x	Unknown — not stated by the source
DVD-RW write speedKnown for one	6x	Unknown — not stated by the source
Reading speedidentical
CD read speed	24x	24x
DVD+R read speedKnown for one	8x	Unknown — not stated by the source
DVD-R read speedKnown for one	8x	Unknown — not stated by the source
CD-RW read speedKnown for one	Unknown — not stated by the source	24x
DVD-R Double Layer read speedKnown for one	Unknown — not stated by the source	8x
DVD+R Double Layer read speedKnown for one	Unknown — not stated by the source	8x
Access timeidentical
DVD drive average random access timeKnown for one	Unknown — not stated by the source	120 ms
CD-ROM drive average random access timeKnown for one	Unknown — not stated by the source	110 ms
Weight & dimensionsidentical
HeightKnown for one	Unknown — not stated by the source	9.5 mm
WeightKnown for one	Unknown — not stated by the source	100 g
Other featuresidentical
Dimensions (WxDxH)Known for one	Unknown — not stated by the source	128 x 129 x 9.5 mm
Compatible operating systemsKnown for one	Unknown — not stated by the source	Microsoft Windows XP, Windows Vista

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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