Philips JackRabbit4 DVD+RW recorder - Page 12

DVD Recording Tests

- Writing Performance

Philips JR4DVDRW supports only DVD+R/RW writing. The maximum supported speed for DVD+R is 4x and 2.4x CLV for DVD+RW media.

4x DVD+R

In order to see the writing strategy of the drive, we burned onto media from Mitsubishi Chemicals using CDSpeed and it's "Create Data CD".

The test confirmed the manufacturer's specifications for 4x DVD+R recording. Starting speed was 3.71x and end speed 4x with an average writing speed of 3.92x.

Below is the CDSpeed screenshot from a 4x DVD+R disc from Mitsubishi Chemicals.

2.4x DVD+RW

From to the screen shot on the left, produced by CDSpeed, we can see that once again the drive performed as was expected, according to its specifications.

The average recording speed in this test was 2.36x

Below is a CDSpeed screenshot with a 2.4x DVD+R disc from Philips.

- Burning Tests

The best recording times are illustrated in the following table after burning 4315MB of data on various DVD+R, DVD+RW media, using the maximum allowed writing speed for each disc. For comparison, we also include the writing times of the Pioneert DVR-SK12d drive.

With DVD+R media Philips is much faster than Pioneer. Notice once again that the Pioneer drive supports 2.4x recording speed at this format. For the DVD+RW format, the Pioneer supports the same speed as the Philips. The Pioneer drive needed around a minute less to complete the same task.

The following screenshot was taken from Nero, after successful burnings with Mitsubishi 4x DVD+R and Philips 2.4x DVD+RW media. The amount of data is the same for all the tests.

• Mitshubishi Chemicals 4x DVD+R

• Philips 2.4x DVD+RW

The table above presents the writing speeds of the drive for the various media formats.

- Packet Writing Tests