Product comparison · 2 optical disc drives

Freecom DVD RW Recorder LS Pro USB-2 & FireWire vs NEC AD-7173 Black

12specifications compared
6differ
6identical
32known for one product only

Key differences

Internal
- DVD RW Recorder LS Pro USB-2 & FireWire:No
- AD-7173 Black:Yes
Product colour
- DVD RW Recorder LS Pro USB-2 & FireWire:Silver
- AD-7173 Black:Black
Interface
- DVD RW Recorder LS Pro USB-2 & FireWire:USB & FireWire
- AD-7173 Black:Serial ATA
CD rewrite speed
- DVD RW Recorder LS Pro USB-2 & FireWire:16x
- AD-7173 Black:32x
Weight
- DVD RW Recorder LS Pro USB-2 & FireWire:1.2 kg
- AD-7173 Black:705 g
Dimensions (WxDxH)
- DVD RW Recorder LS Pro USB-2 & FireWire:165 x 250 x 48 mm
- AD-7173 Black:148 x 175 x 42 mm

Side by side

Differences highlightedShow differences only

Comparison of DVD RW Recorder LS Pro USB-2 & FireWire, AD-7173 Black
44 specifications	A Freecom DVD RW Recorder LS Pro USB-2 & FireWire View product	B NEC AD-7173 Black View product
Design2 differ
InternalDiffers	No	Yes
Product colourDiffers	Silver	Black
Disc loading type	Tray	Tray
MountingKnown for one	Unknown — not stated by the source	Vertical/Horizontal
Performance1 differ
Optical drive type	DVD-RW	DVD-RW
InterfaceDiffers	USB & FireWire	Serial ATA
Drive device, buffer sizeKnown for one	Unknown — not stated by the source	2 MB
Burst transfer rateKnown for one	Unknown — not stated by the source	150 MB/s
LightScribeKnown for one	Yes	Unknown — not stated by the source
Writing speed1 differ
CD write speed	48x	48x
CD rewrite speedDiffers	16x	32x
CD-R write speedKnown for one	Unknown — not stated by the source	48x
CD-RW write speedKnown for one	Unknown — not stated by the source	32x
DVD+R write speedKnown for one	Unknown — not stated by the source	18x
DVD+RW write speedKnown for one	Unknown — not stated by the source	8x
DVD-R Double Layer write speed	8x	8x
DVD-R write speedKnown for one	Unknown — not stated by the source	18x
DVD-RAM write speedKnown for one	Unknown — not stated by the source	12x
DVD-RW write speedKnown for one	Unknown — not stated by the source	6x
DVD+R Double Layer write speedKnown for one	4x	Unknown — not stated by the source
DVD write speedKnown for one	16x	Unknown — not stated by the source
DVD rewrite speedKnown for one	8x	Unknown — not stated by the source
Reading speedidentical
CD read speed	48x	48x
CD-ROM read speedKnown for one	Unknown — not stated by the source	48x
DVD-ROM read speedKnown for one	Unknown — not stated by the source	16x
DVD-R9 read speedKnown for one	8x	Unknown — not stated by the source
DVD-RAM read speedKnown for one	5x	Unknown — not stated by the source
DVD-RW read speedKnown for one	6x	Unknown — not stated by the source
DVD+RW read speedKnown for one	8x	Unknown — not stated by the source
Access timeidentical
DVD drive average random access timeKnown for one	Unknown — not stated by the source	160 ms
CD-ROM drive average random access timeKnown for one	Unknown — not stated by the source	140 ms
Record modesidentical
Disc-at-once (DAO)Known for one	Unknown — not stated by the source	Yes
Fixed packetKnown for one	Unknown — not stated by the source	Yes
Multi sessionKnown for one	Unknown — not stated by the source	Yes
Session-at-once (SAO)Known for one	Unknown — not stated by the source	Yes
Track-at-once (TAO)Known for one	Unknown — not stated by the source	Yes
Variable packetKnown for one	Unknown — not stated by the source	Yes
Weight & dimensions1 differ
HeightKnown for one	Unknown — not stated by the source	42 mm
WeightDiffers	1.2 kg	705 g
Other features1 differ
Dimensions (WxDxH)Differs	165 x 250 x 48 mm	148 x 175 x 42 mm
Number of optical discs	1 discs	1 discs
Minimum RAMKnown for one	256 MB	Unknown — not stated by the source
DVD+R speedKnown for one	16x	Unknown — not stated by the source
DVD-R speedKnown for one	16x	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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