Philips JackRabbit32 CD-RW/DVD drive - Page 8

CDR Tests

We tested the drive with the latest version of Nero/CloneCD. Philips JR32RWDV supports the 32X (Z-CLV) maximum writing speed.

As you can see from the CDSpeed graph below, the drive does not keep the writing speed steady even in the areas where writing is done under the CLV mode. Sequential decreases /rises in the writing speed occur, in the areas where someone might expect the graph to be horizontal. These fluctuations result to a 24.73x average writing speed, and the duration of the writing process is expected to be influenced by the specific writing strategy. The basic speed shifts are from the 16x to 24x at 14min, and up to 32x at 44min.

- Recording Tests

We burned 80 minutes of data with both drives. As you can see, Philips JR32RWDV needed 252 seconds to finish the task, and the duration seems to be rather high for a 32x recorder. The explanation for this can be found in the CDSpeed graph above, where you can see the Z-CLV implementation of the drive. The following picture comes from Nero after a successful burning at 32x.

The following is from Nero again after a burning task at 16x.

Below you can see the best recording times we obtained for all the supported writing speeds. The Philips drive is slower than the INcoder at 32x. Note that Philips JR32RWDV does not support the 24x writing speed at all.

- Other features

- CloneCD Writing Tests

The CloneCD software reports that the drive supports the DAO-RAW feature. In some cases the drive didn't worked properly with specific media.

For checking the drive's EFM correction status, we used 3 different game titles with different SafeDisc 2 versions and all the latest software patches installed. We used the drive as both a reader/writer at maximum reading/recording speeds. Two discs were burned for each game (Amplify Weak Sectors On/Off). One disc was burned with PadusDJ and the other with CloneCD (Amplify Weak Sectors On). The results are posted in the table below:

The Philips JR32RWDV cannot handle SafeDisc v.2.60xx or higher protected discs. Amplifying weak sectors did not make any difference. The drive created working backups of SD v2.50.020 that played in all drives we tested them.