Product comparison · 2 optical disc drives

NEC 16x DVD-ROM SATA vs NEC AD-7220S optical disc drive Internal Black

8specifications compared
4differ
4identical
28known for one product only

Key differences

Drive device, buffer size
- 16x DVD-ROM SATA:0.2 MB
- AD-7220S optical disc drive Internal Black:2 MB
DVD drive average random access time
- 16x DVD-ROM SATA:125 ms
- AD-7220S optical disc drive Internal Black:160 ms
CD-ROM drive average random access time
- 16x DVD-ROM SATA:100 ms
- AD-7220S optical disc drive Internal Black:140 ms
Weight
- 16x DVD-ROM SATA:640 g
- AD-7220S optical disc drive Internal Black:600 g

Side by side

Differences highlightedShow differences only

Comparison of 16x DVD-ROM SATA, AD-7220S
36 specifications	A NEC 16x DVD-ROM SATA View product	B NEC AD-7220S optical disc drive Internal Black Model AD-7220S View product
Designidentical
Product colourKnown for one	Unknown — not stated by the source	Black
Disc loading typeKnown for one	Unknown — not stated by the source	Tray
MountingKnown for one	Unknown — not stated by the source	Vertical/Horizontal
Performance1 differ
LightScribeKnown for one	Unknown — not stated by the source	No
Drive device, buffer sizeDiffers	0.2 MB	2 MB
Optical disc diameterKnown for one	Unknown — not stated by the source	120 mm
Burst transfer rateKnown for one	Unknown — not stated by the source	150 MB/s
Writing speedidentical
CD write speedKnown for one	Unknown — not stated by the source	48x
CD rewrite speedKnown for one	Unknown — not stated by the source	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 Double Layer write speedKnown for one	Unknown — not stated by the source	8x
DVD+R write speedKnown for one	Unknown — not stated by the source	22x
DVD+RW write speedKnown for one	Unknown — not stated by the source	8x
DVD-R Double Layer write speedKnown for one	Unknown — not stated by the source	8x
DVD-R write speedKnown for one	Unknown — not stated by the source	22x
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
Reading speedidentical
DVD-ROM read speedKnown for one	Unknown — not stated by the source	16x
DVD read speedKnown for one	16x	Unknown — not stated by the source
Access time2 differ
DVD drive average random access timeDiffers	125 ms	160 ms
CD-ROM drive average random access timeDiffers	100 ms	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
WeightDiffers	640 g	600 g
HeightKnown for one	42 mm	Unknown — not stated by the source
Other featuresidentical
Media types supportedKnown for one	Unknown — not stated by the source	DVDROM, DVD+R, DVD+R DL, DVD+RW, DVD-R, DVD-R DL, DVD-RW, DVD-RAM, CD-ROM (mode 1), CD-ROM/XA (mode 2, form 1/form 2), Photo CD, CD Extra, CD-TEXT, CD-I, VIDEO CD, DVD-Video, DVD-Audio, CD-DA, Enhance CD, UDF (fixed/variable Packet mode), DVD-Audio
Drive device, transfer rateKnown for one	150 MB/s	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.

More optical disc drive comparisons

All optical disc drive comparisons