NEC AD-7191S vs LG H20NS

[Presler]

Ciao ragazzi .. vorrei capire meglio la differenza tra quei 2 masterizzatori DVD SATA.

Sono entrambi 20X ma perchè l'LG costa di meno ?!?

Vi elenco qui le specifiche .. io non riesco a capire bene la differenza ..

NEC

Product Specification
Read Speed: DVD: 16x max. CD: 48x max.
Write Speed: DVD-R: 20x max. DVD +R: 20x max. DVD-RW: 6x max. DVD +RW: 8x max. DVD-R DL: 8x max. DVD +R9: 8x max. DVD-RAM: 12x max. CD-R: 48x max. CD-RW: 32x max.
Burst transfer rate: PIO mode 4 / Ultra DMA 66
Access time (average): DVD: 160 ms CD: 140 ms
Mechanism: Motorized tray load mechanism for horizontal and vertical use
Interface: S-ATA
Burst Transfer Rate: 150 MByte/s
Cache Memory: 2 MByte
Media supported: DVD-ROM, DVD-R (DL), DVD-RW, DVD-RAM, DVD +R, DVD +RW, DVD +R9, CD-ROM, CD-R and CD-RW with 80mm and 120mm diameter, Lightscribe™ DVD and CD
Modes supported: DVD-ROM, DVD-Video, CD-ROM, CD-ROM XA, CD-I Ready, CD-Bridge, PhotoCD, VideoCD, CD-DA, CD Extra, CD Text
Writing methods : DAO, SAO, TAO with zero gap, variable or fixed packet, multisession
Compatibility : MPC Level 3, MultiRead, PC2001
Weight: 0.6 kg
Dimensions: 148 mm x 42 mm x 170 mm
Special features: Lightscribe™, dust protected enclosure, buffer under run error prevention, available colours: beige, black, silver


LG

Speed Write

DVD+R : 2.4x, 4x, 6x CLV, 8x ZCLV, 8x, 12x, 16x PCAV, 18x, 20x CAV
DVD+RW : 2.4x, 4x, 6x CLV, 8x ZCLV (High Speed DVD+RW: 6x CLV, 8x ZCLV)
DVD-R : MASTERIZZATORE DVD INT. 20X /-R DUAL LAYER INTERFACCIA SATA
DVD-RW : 1x, 2x, 4x, 6x CLV
DVD+R DL : 2.4x , 4x , 6x CLV, 8x, 10x, 12X ZCLV
DVD-R DL : 2x, 4x, 6x CLV, 8x, 10x, 12x ZCLV
DVD-RAM : 2x, 3x ZCLV, 3x-5x PCAV (Ver.2.2), 6x ZCLV, 6x-8x PCAV, 6x-12x PCAV
CD-R : 4x, 8x, 16x CLV, 24x, 32x, 40x PCAV, 48x CAV
CD-RW : 4x, 10x,16x CLV, 24x, 32x ZCLV (High Speed: 10x, Ultra Speed: 16x, 24x, US Plus: 16x, 24x, 32x)

Speed Read

DVD-R/RW/ROM(SL/DL) : 16x/13x/16x/12x max.
DVD-R DL : 12x max.
DVD-RAM (Ver.1.0/2.2) : 2x/ 2x, 3x-5x PCAV 6x CLV, 6x-8x PCAV, 6x-12x PCAV
DVD- Video (CSS Compliant Disc) : 4.8x max. (Single/Dual layer)
DVD+R/+RW : 16x / 13x max.
DVD+R DL : 12x max.
CD-R/RW/ROM : 48x/40x/48x max.
CD-DA (DAE) : 40x max.
80 mm CD : 10x max.
Sustained Transfer Rate
DVD-ROM : 22.16 Mbytes/s (16x) max.
CD-ROM : 7,200 kB/s (48x) max.
Burst Transfer Rate : SATA, Ultra DMA Mode 5, Multi word DMA Mode2,PIO Mode 4
Access Time
DVD-ROM (SL/DL) : 145ms
DVD-RAM : 125ms
Buffer Size : 2MB
Loading Type : Motorized Tray
Interface Type : T13 ATA/ATAPI-7 MMC-5, INF-8090i v7
SecurDisk : T13 ATA/ATAPI-7 MMC-5, INF-8090i v7
Write Method : (1) DVD-R/RW: Disc at Once, Incremental Recording, Restricted Overwrite (DVD-RW only)
(2) DVD-R DL: Disc at Once (DAO), Format4(Layer Jump Recording)
(3) DVD-RAM/+RW: Random Write
(4) DVD+R: Sequential Recording
(5) DVD+R DL: Sequential Recording
(6) CD-R/RW: Disc at Once (DAO), Session at Once (SAO), Track at Once (TAO), Packet Writing

Compatible Formats : DVD-ROM: 4.7GB (Single Layer), 8.5GB (Dual Layer)
DVD-R: 4.7GB (Ver. 2.0 for Authoring: read only), 4.7GB (Ver. 2.1 for General: read & write)
(DL): 8.5GB (Ver. 3.0)
DVD-RW: 4.7GB (Ver. 1.2/ Rev 1.0, 2.0, 3.0)
DVD-RAM: 2.6GB/side (Ver. 1.0: read only), 1.46GB/side, 4.7GB/side (Ver. 2.2)
DVD+R: 4.7GB (Ver. 1.3)
(DL): 8.5GB (Ver. 1.1)
DVD+RW: 4.7GB (Vol. 1/Ver.1.3, Vol. 2/Ver.1.0)
CD-ROM Mode-1 data disc
CD-ROM Mode-2 data disc
CD-ROM XA, CD-I, Photo-CD Multi-Session, Video CD
CD-Audio Disc
Mixed mode CD-ROM disc (data and audio)
CD-Extra
CD-Text
CD-R (Conforming to “Orange Book Part 2”: read & write)
CD-RW (Conforming to “Orange Book Part 3”: read & write)

W x H x D : 146 x 41.3 x 165 mm

Operating System : Windows Millennium Edition (Me)
Windows 2000 Professional
Windows XP Home Edition, Professional, Media Center Edition
Windows VISTA x86/x64


GRAZIE

[Presler]

nessuno mi dà qualche indicazione ?!? pleasee ..