De mannen van The Tech Zone hebben een review gemaakt van de al een aantal keren afgekraakte Yamaha CRW2100 EZ 16/10/40. Je verwacht namelijk dat de brander je CD'tje op 16x bakt, maar de drive begint op 12x en haalt pas 16x na 15 minuten branden. De 10x rewrite wordt allleen maar gehaald aan de buitenkant van de CD. Andere nadelen die aan deze brander kleven zijn het ontbreken van een anti-bufferunderrun technologie en de vibratie die het apparaat veroorzaakt. Ook in deze review vallen de resultaten vies tegen en moet de brander genoegen nemen met een 6/10:
Yamaha claims the CRW2100EZ is able to record at 16X. This is only partly true. The drive starts recording CDs at 12X and doesn't kick into 16X mode till about 15 minute into the disk. After that, it's 16X all the way to the end. Yamaha also says the CRW2100EZ can do rewrites at 10X but, again, this too is misleading. The drive burns CD-RWs at 4X to 8X until it hits the outer edges of the disk, then it switches to 10X.
This is because of the drive's semi-CAV design, which is a combo of Constant Angular Velocity (CAV) and Constant Linear Velocity (CLV). Because CAV spins the disk at a constant speed, more data is written to the edge than the center. Once the drive writes up to a certain point on the disk it switches over to CLV to maintain its maximum burn speed.
This semi-CAV design is part of Yamaha's Waste-Proof Write Strategy. By using a huge 8 Meg buffer and modulating the write speed it's suppose to do away with buffer underruns. However it doesn't work very well. Nowhere near as good as Plextor's Burn Proof. The drive is also quite sensitive to vibration. A whack on the side of the case created a bad CD. Of course you shouldn't be whacking your case or running other programs when you're burning CDs.
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