Philips DVDR824P DVD+RW - Page 11

DVD Recording Tests

- Writing Performance

Philips DVDR824P supports DVD+R/RW writing. The maximum supported speeds are 8X and 4x respectively.

We used a 8x DVD+R disc by Mitsubishi Chemicals, in order to check the 8x writing strategy of the drive. The software we used is Nero CDSpeed, and its "create disc" function.

Philips started writing at 5.34x and finished at 8.03x which confirm manufacturers specifications. As we mention in the first page of this test the behaviour of the drive as it illustrates in the following diagram is natural, confirming once again Philips strategy.

Below is a screenshot of CDspeed writing test with 4x DVD+RW discs by Ricoh (4x CLV):

The 4x DVD+RW media has almost the same performanse with the previous test. The writing process began at 4x and the average speed was 3.88x.

- Burning Tests

We burned 4315MB of data on various DVD+R, DVD+RW media. We used the maximum allowed writing speed for each disc. The best recording times are illustrated in the following table. For comparison, we also include the writing times of Optorite DD0203, Ricoh MP5240 and Plextor PX-708A:

As we can see with DVD+R media Philips and Plextor gave almost the same values, with Philips being slower for 7 sec. Because of the 8x writing speed of this drives it was logical to have half time than the other two , Ricoh and Optorite.. At the DVD+RW part the values again depends on the writing speed of the drives. Between the three drives that we can compare Ricoh was faster while Philips and Plextor had once again the same performance.

The following pictures come from Nero, after successful burnings with Verbatim 4x DVD+R, Taiyo Yuden 4x DVD+R, and Ricoh 4x DVD+RW media. The amount of data is the same for all the tests.

• Philips 8x DVD+R (8x recording)

• Verbatim 4x DVD+R (8x recording)

• Ricoh 4x DVD+RW

Philips selects the maximum allowed recording speed according to the inserted blank DVD discs. In the following table you can see the maximum permitted writing speeds with various media.

- DVD+RW Packet Writing

Philips DVDR824P supports packet writing with DVD+RW and DVD+RW media. To test the performance in the DVD+RW format, we formatted some Ricoh 4x DVD+RW discs and started the drag'n drop process, using an 412MB (412.822Kb) file. With the background formatting in full progress, we wrote down the reading / writing performance. The performance of the drive is illustrated in the table below:

Although the media we used support the higher available writing speeds for each format, under packet writing the performance is lower than in the case of normal writing. In case of DVD+RW, this can be explained by the fact that the background formatting process was running in parallel with our tests.

- Mount Rainier

Philips DVR824P is currently not supporting DVD+MRW. According to Philips, the implementation will be possibly added with a future firmware upgrade.