Lenovo Blu-ray Burner vs Lenovo ThinkPad CD-RW/DVD-ROM Ultrabay Enhanced Drive (Serial ATA)

Comparison of Blu-ray Burner, ThinkPad CD-RW/DVD-ROM Ultrabay Enhanced Drive (Serial ATA)

27 specifications	A Lenovo Blu-ray BurnerView product	B Lenovo ThinkPad CD-RW/DVD-ROM Ultrabay Enhanced Drive (Serial ATA)View product
Designidentical
CertificationKnown for one	—Unknown — not stated by the source	CE, CSA, TUV, UL, MIC, C-Tick, BSMI
Product colourKnown for one	Black	—Unknown — not stated by the source
Performance1 differ
Drive device, buffer sizeDiffers	4 MB	2 MB
PurposeKnown for one	Desktop	—Unknown — not stated by the source
Disc types supportedKnown for one	BD-R, BD-R DL, BD-RE, BD-RE DL, CD, CD-R, CD-RW, DVD, DVD+R, DVD+RW, DVD+RW DL, DVD-R, DVD-R DL, DVD-RAM, DVD-RW	—Unknown — not stated by the source
Writing speedidentical
CD write speedKnown for one	—Unknown — not stated by the source	24x
CD rewrite speedKnown for one	—Unknown — not stated by the source	24x
CD-R write speedKnown for one	—Unknown — not stated by the source	24x
CD-RW write speedKnown for one	—Unknown — not stated by the source	24x
Reading speedidentical
CD read speedKnown for one	—Unknown — not stated by the source	24x
CD-R read speedKnown for one	—Unknown — not stated by the source	24x
CD-ROM 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 speedKnown for one	—Unknown — not stated by the source	6x
DVD-R Double Layer read speedKnown for one	—Unknown — not stated by the source	6x
DVD-R read speedKnown for one	—Unknown — not stated by the source	6x
DVD-RAM read speedKnown for one	—Unknown — not stated by the source	5x
DVD-ROM read speedKnown for one	—Unknown — not stated by the source	8x
DVD-RW read speedKnown for one	—Unknown — not stated by the source	4x
DVD+R Double Layer read speedKnown for one	—Unknown — not stated by the source	6x
DVD+RW read speedKnown for one	—Unknown — not stated by the source	4x
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
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
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.