As said before, Yamaha's marketing department does a good job introducing the latest Yamaha CRWF1 model by releasing information about the drive in pieces. Today we get piece number four.
Before we learned more about the audio recording technology used: Advanced Audio Master and the technology to burn images on the surface of the CD-R. The latest puzzle piece is about the write strategy of the drive:
Full-CAV: |
The Full-CAV recording method is identical to the way a conventional CD-Rom reads data, which rotates at a constant speed no matter where the data is located on the disc. Yamaha's efficient use of Full-CAV technology allows writing to increase at a smooth and consistent rate until it achieves full speed. Yamaha's exclusive OWSC (Optimum Write Speed Control) adjusts to the maximum recording speed of the blank CDR.
Zone-CLV:
Other high speed CD-RW manufacturers are using the "Zone-CLV (Constant Linear Velocity)" method which "jumps" in recording speed, greatly compromising the integrity of the recorded data on the disc and substantially increasing the likelihood of encountering critical errors while making the links between each speed zone. The Zone-CLV recording method relies on competitor's buffer underrun protection in order to create the link between the speed zones. Each time the buffer management system is activated, an error is introduced on the CD. Over time, these errors can compromise the reliability of the recorded CD. Without the speed shifts and the required links, a Zone-CLV equipped recorder cannot reach its maximum write speed.
Mind that these are the thoughts of Yamaha and their thoughts might not be shared by other manufacturers. Also intresting is that Yamaha states that the Yamaha CRW-F1 is able to write a full 80-minute CD-R disc in just 163 seconds without compromising in the quality of the disc...
Source: YamahaMultimedia
