Lenovo Blu-ray Burner vs NEC AD-7220S optical disc drive Internal Black

Comparison of Blu-ray Burner, AD-7220S

35 specifications	A Lenovo Blu-ray BurnerView product	B NEC AD-7220S optical disc drive Internal Black Model AD-7220S View product
Designidentical
Internal	Yes	Yes
Product colour	Black	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
Interface	Serial ATA	Serial ATA
LightScribeKnown for one	—Unknown — not stated by the source	No
Drive device, buffer sizeDiffers	4 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
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	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
CD read speedKnown for one	—Unknown — not stated by the source	48x
DVD-ROM read speedKnown for one	—Unknown — not stated by the source	16x
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 & dimensionsidentical
WeightKnown for one	—Unknown — not stated by the source	600 g
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
Dimensions (WxDxH)Known for one	—Unknown — not stated by the source	148 x 170 x 42 mm

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.