Asus CRW-3212A and Yamaha CRW3200E-VK in the test: Nero's favorites in the battle for the hot iron
- 1 Preface
- Scope of delivery of the burner
- 3 Technology and special features
- 5 Test system
- 9 Kummerecke
- 10 Conclusion
The absolute highlight of the CRW3200 series is the new one developed by Yamaha Audio Master Quality Recording function, which improves the sound quality of audio data by significantly reducing jitter values. Since conventionally burned CDs have significantly higher jitter values compared to pressed CDs, the sound quality is also reduced as a result. The audio master function reduces the jitter values by 30% compared to a conventionally burned CD. But what does the jitter value actually describe? A burner writes music data in the form of pits and lands on the CD. In the CD player, the digital information of the pits and lands is decrypted and played by the reading unit. However, due to various influences (e.g. component tolerances, ripple voltages, electromagnetic fields), the signals from the pits and lands do not reach the reading unit of the CD player in time at the expected time. This 'delay' is called jitter. High jitter values cause inaccurate sound positioning, missingBass frequencies and unclean sound. When the CRW3200 operates in audio master mode, it writes longer pits and lands compared to normal burn mode. The CD player reads the CD created with Audio Master in the same time thanks to the variable linear speed, although the pits and lands are much longer. However, this means that the percentage of jitter during playback is drastically reduced. When reading through the laser unit of the CD player, the photodetector receives more information per pit and country. However, you have to sacrifice a good 11 minutes for this function, so that only 63 or 68 minutes fit on a standard 74 or 80 minute CD.
Reading information recorded with Audio Master Quality Recording in the CRW3200 is Easier for the CD player, so error correction only needs to be activated very rarely. This also applies to older CD players and in the car hi-fi sector.
But the one The Yamaha burners we have tested come up with even more innovations. The CRW3200, for example, is also the first CD-RW drive in which the new industry standard CD-MRW (CD Mount Rainer ReWrite) has been implemented. With this function, a CD-RW can be handled like a removable medium (e.g. floppy disk). However, you have to sacrifice around 150 MB for formatting the CD in favor of this feature. The functions of CD-MRW include the following points:
- Formatting in the background The formatting that was previously completehad to be done before writing to a CD, now runs in the background. Since the write process has priority over formatting, this enables drag & drop editing of data on the CD-RW immediately after inserting it into the drive. This means that data can be written to the CD during the formatting process.
- CD can be ejected at any time The CD can be ejected at any time, even before the formatting process is complete. After reinserting it into the drive, the formatting continues.
- Logical 2K addressing when writing In contrast to the conventional packet writing and data transfer methods, which process the data 64K blocks, Mt.Rainer works with 2K -Blocks and thus increases the transparency of the file system and cache function.
- Physical error management by the drive In the event of a defective medium, error management takes place directly in the drive. This means that packet writing applications for communicating with the drive and localizing errors on the drive or medium are no longer necessary
Even older drives should at least be able to read CD-MRW, which is really very gratifying in many ways. However, this requires a special driver that ensures that the data is correctly interpreted. However, this driver is still missing. However, writing on a CD-MRW is still causing problems at the moment, but these are due to the software. But more on that in the worry corner at the end of this article
The CD-RW audio track editing mode, with which audio tracks recorded on CD-RW can be edited without having to erase the entire CD-RW, is another interesting feature in the CRW3200. The following graphic illustrates how it works.
However, not all that glitters is gold here either. For example, if you want to delete the fourth audio track on a CD-RW with a total of 15 titles, all other titles after the fourth track will also be deleted. Only the first three tracks are left unchanged on the CD in this case. So you haven't really gained much.
To ensure safe and error-free writing, Yamaha relies on the SafeBurn technology. This is a triple safety combination to protect the burn process, which not only prevents buffer underruns, but also guarantees an optimal burn result at maximum write speed. Apart from the protection against buffer underruns, it offers a sufficient buffer of 8MB as well as Optimum Write Speed Control, whereby the write speed is automatically adapted to the medium used. SafeBurn thus combines the technologies known at Asus as FlextraLink and FlexSpeed, but the way they work is identical. The Yamaha also deserves praise for its 8MB write cache, which is above average. If the data stream is completely interrupted, the drive can still be supplied with data for 2.2 seconds.
On the next page: Test system