Freecom Blu-ray Combo USB vs Freecom Blu-ray Combo USB & FireWire

Comparison of Blu-ray Combo USB, Blu-ray Combo USB & FireWire

22 specifications	A Freecom Blu-ray Combo USBView product	B Freecom Blu-ray Combo USB & FireWireView product
Designidentical
Internal	No	No
Product colour	Silver	Silver
Mounting	Horizontal	Horizontal
Performanceidentical
Interface	USB 2.0	USB 2.0
Reading speedidentical
CD-R read speed	48x	48x
CD-ROM read speed	48x	48x
CD-RW read speed	32x	32x
BD-R read speed	8x	8x
BD-RE read speed	8x	8x
BD-ROM read speed	8x	8x
DVD+R read speed	16x	16x
DVD-R Double Layer read speed	8x	8x
DVD-R read speed	16x	16x
DVD-ROM read speed	16x	16x
DVD-RW read speed	6x	6x
DVD+R Double Layer read speed	8x	8x
DVD+RW read speed	8x	8x
Operational conditionsidentical
Operating temperature (T-T)	10 - 35 °C	10 - 35 °C
Storage temperature (T-T)	-20 - 70 °C	-20 - 70 °C
Weight & dimensionsidentical
Weight	1.2 kg	1.2 kg
Other featuresidentical
Dimensions (WxDxH)	250 x 165 x 48 mm	250 x 165 x 48 mm
Compatible operating systems	Windows 7, Vista, XP Mac OS X	Windows 7, Vista, XP Mac OS X

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.