Product comparison · 2 optical disc drives

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

6specifications compared
0differ
6identical
22known for one product only

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Comparison of ThinkPad DVD Burner Ultrabay Enhanced Drive (Serial ATA), ThinkPad DVD-ROM Ultrabay Enhanced Drive (Serial ATA)
28 specifications	A Lenovo ThinkPad DVD Burner Ultrabay Enhanced Drive (Serial ATA)View product	B Lenovo ThinkPad DVD-ROM Ultrabay Enhanced Drive (Serial ATA)View product
Designidentical
Internal	Yes	Yes
CertificationKnown for one	Unknown — not stated by the source	CE, CSA, TUV, UL, MIC, C-Tick, BSMI
Disc loading typeKnown for one	Tray	Unknown — not stated by the source
Performanceidentical
Optical drive typeKnown for one	Unknown — not stated by the source	DVD-ROM
Interface	Serial ATA	Serial ATA
Drive device, buffer size	2 MB	2 MB
Reading speedidentical
CD read speed	24x	24x
CD-R read speedKnown for one	Unknown — not stated by the source	24x
CD-RW read speedKnown for one	Unknown — not stated by the source	24x
DVD+R read speed	8x	8x
DVD-R Double Layer read speedKnown for one	Unknown — not stated by the source	6x
DVD-R read speed	8x	8x
DVD+R Double Layer read speedKnown for one	Unknown — not stated by the source	6x
DVD 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	170 ms
CD-ROM drive average random access timeKnown for one	Unknown — not stated by the source	150 ms
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	5.04 in
DepthKnown for one	Unknown — not stated by the source	5 in
HeightKnown for one	Unknown — not stated by the source	0.5 in
Other featuresidentical
Media types supportedKnown for one	Unknown — not stated by the source	CD-R, CD-RW, DVD-RAM, DVD-R, DVD-RW, DVD+R, DVD+RW, DVD+R DL, DVD-R DL
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

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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