Asus CRW-3212A and Yamaha CRW3200E-VK in the test: Nero's favorites in the battle for the hot iron

Asus CRW-3212A and Yamaha CRW3200E-VK in the test: Nero's favorites in the battle for the hot iron

Write Data

We come to the main part of the test, the burning of data and audio CDs, in which the two burners show ko nth what is in them.

Write simulation
Write data

It turns out that both burners reach the burning speed specified by the manufacturer in the end. In contrast to the Asus 3212A burner, the Yamaha 3200E burner starts at a slightly higher speed and burns at its maximum from the 15th minute of a CD, while the Asus burner only writes at full 32x speed after the 35th minute of a CD. This explains why the Asus 3212A burner only has a relatively small lead over the Yamaha 3200E model, despite its faster speed on average and in writing time. At theWriting at 24 times the speed, the Asus 3212A burner simply worked at 32 times the speed, although it should actually write at 24 times. This was the only way to save himself from the Yamaha model.

Write Audio

When burning audio CDs, both burners were basically the same speed or although the Asus 3212A burner is 1/3 faster according to the manufacturer's specifications, one has at Audio CDs do not save time. The reason for this is to be found in the size of the audio CD. In contrast to the 700 MB data CD, this only had a size of 650 MB, which means that the Asus recorder could not benefit from its 32x speed. The full 32x could simply be used relatively late. The comparison burner HP 9100 still uses the old CLV process and therefore always burns at a constant 8-fold speed. The following graphics should clarify this fact:

As already mentioned, the recorder from HP writes with the CLV method. The CLV method (constant linear speed) is generally used for writing data to a CD-R disc. The CLV method sets the disc speed so that a constant data rate (data transfer rate) is maintained on each part of the disc. However, this method is rarely used in today's high-speed CD-R/RW or CD-ROM drives. While CD-ROM drives nowadays all use the CAV (constant angle speed) method, today's burners use a mixture of both technologies.

CLV mode
CAV mode

With the CAV method, a constant disc speed is over the entire CD is used while the data transfer rate changes. The CAV method enables the maximum data transfer rate to be increased significantly without placing a greater load on the drive mechanism.

Zone CLV
Partial CAV

While Asus and Yamaha rely entirely on the CAV when reading data Set method, the paths separate when writing the data. Asus uses the Zone CLV method for the CRW-3212A, in which writing is carried out at a constant speed within certain zones. Asus starts the write process at 16x speed and increases it in steps of 20x, 24x up to the specified write speed of 32x. When writing small amounts of data, you cannot enjoy full speed. This of course influences the burning speed, so that the Yamaha recorder can catch up quite a bit with 650MB of data. With data volumes below 600MB, the two opponents are about the same. But why is that? While Asus relies on Zone CLV, Yamaha opted for the partial CAV method. This is a combination of the CAV method for writing on the inner tracks and the CLV method for writing on the outer tracks. The P-CAV method controls the disc rotation in such a way that the drive begins writing on the inner tracks at 18x ​​speed. The speed is then continuously increased to 24x while theRead/write head moved outwards. The speed is then kept at 24x on the outer lanes. In this way, the recorder from Yamaha reaches the target speed much earlier than the drive from Asus.

On the next page: Write CD-RW