Philips DVDRW885K Double Layer - Page 4

DVD reading tests

- Single Layer DVD-ROM (Click for CDSpeed results)

To check the reading performance of the Philips drive with single layer DVD-ROM, we used NeroCDSpeed and the 820A test disc from Abex.

- Dual Layer PTP DVD-ROM (Click for CDSpeed results)

The two layers of a PTP DVD-ROM disc are read sequentially, with the drive starting the read process from the inner tracks on the disc, where lies the beginning of each layer and progressing outwards towards to the outer tracks for each layer. The tools for this test are Nero CDSpeed and the Abex 840 test disc.

- Dual Layer OTP DVD-ROM

The first layer of an OTP dual layer DVD-ROM is read exactly the same way as the first layer of the PTP disc we tested previously. The difference here is the reading strategy of the second layer on the disc. The beginning of the second layer is located in the outer part of the disc, so the drive starts reading from the outer tracks inwards towards the inner tracks of the disc.

- DVD Ripping Tests

We measured the DVD-Video ripping speed for the Philips drive using the latest version of DVD Decrypter. The DVD Video title is the "Matrix" pressed DVD-Video.

You will notice that with ripping, there has been some improvment in speed since the DVDR824P.

- DVD Recordable / Rewritable reading Tests

The chart below shows the Nero CDSpeed average reading speed results for the following formats with media from Mitsubishi Chemicals:

• 8x DVD+R
• 4x DVD+RW

• 8x DVD-R
• 4x DVD-RW

The performance in all tests is almost identical with both drives.