Product comparison · 2 optical disc drives

BenQ CD 656A 56x IDE Int Bulk vs BenQ DVD+-R RW DW1620 BULK BLK

6specifications compared
4differ
2identical
13known for one product only

Key differences

Drive device, buffer size
- CD 656A 56x IDE Int Bulk:0.125 MB
- DVD+-R RW DW1620 BULK BLK:2 MB
CD read speed
- CD 656A 56x IDE Int Bulk:56x
- DVD+-R RW DW1620 BULK BLK:40x
Dimensions (WxDxH)
- CD 656A 56x IDE Int Bulk:148 x 198 x 42 mm
- DVD+-R RW DW1620 BULK BLK:146 x 198 x 42 mm

Side by side

Differences highlightedShow differences only

Comparison of CD 656A 56x IDE Int Bulk, DVD+-R RW DW1620 BULK BLK
19 specifications	A BenQ CD 656A 56x IDE Int Bulk View product	B BenQ DVD+-R RW DW1620 BULK BLK View product
Performance1 differ
Drive device, buffer sizeDiffers	0.125 MB	2 MB
Burst transfer rateKnown for one	33.3 MB/s	Unknown — not stated by the source
Writing speedidentical
CD write speedKnown for one	Unknown — not stated by the source	40x
CD rewrite speedKnown for one	Unknown — not stated by the source	24x
DVD write speedKnown for one	Unknown — not stated by the source	16x
DVD rewrite speedKnown for one	Unknown — not stated by the source	4x
Reading speed1 differ
CD read speedDiffers	56x	40x
DVD read speedKnown for one	Unknown — not stated by the source	16x
Operational conditionsidentical
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	8 - 80%
Operating temperature (T-T)Known for one	Unknown — not stated by the source	5 - 45 °C
Other features2 differ
Power requirementsKnown for one	Unknown — not stated by the source	DC 5V +/- 5%, ripple 100mVpp; DC12V+/- 10%, ripple 200mVpp
Media types supportedDiffers	CD-audio, CD-ROM (mode 1 and mode 2), CD-ROM XA (mode 2, form 2), CD-Plus, CD-i / FMV, Video CD, Photo CD (single- & multi-session), I-TRAX enhanced CD, Karaoke CD, CD-R, CD-RW	Disc Size: DVD 12cm, CD 8cm/12cm
Minimum system requirementsKnown for one	Unknown — not stated by the source	IBM PC compatible Pentium III 550MHz CPU or above 128MB DRAM, 100MB free HDD space for CD/DVD recording related software installation1GB free HDD space for CD Image recording
Dimensions (WxDxH)Differs	148 x 198 x 42 mm	146 x 198 x 42 mm
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 98/2000/ME/XP
Mac compatibilityKnown for one	No	Unknown — not stated by the source
Access timeidentical
Access timeKnown for one	90 ms	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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