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Home > Hardware Reviews > Optical Storage > DVD Recorders 8x

Tuesday, December 09, 2003
Optorite DD0401 Dual DVD Recorder

4. DVD Reading Tests

Optorite DD0401 Dual DVD Recorder - Page 4

DVD reading tests

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

In the DVD single layer read test, and in comparison with the Philips and Plextor drives, while all three drives support a maximum reading speed of 12x for the DVD-ROM media, the Philips DVDR824P is fastest with an average speed of 9.36x while the Optorite DD0401 was slowest at 8.82x. The reported end speed is 11.8x for the Optorite (slowest), with the fastest being 12.51x for the Philips drive.

The manufacturer's specifications give the Optorite drive a random seek time of 130msec for DVD. NeroCDSpeed reported that the drive needed only 96ms for the Random seek test. On this test the fastest time was from Plextor with 91ms. On the other two seek time tests, CdSpeed reported that the Optorite drive clocked 109ms for the 1/3 seek and 177ms for the full seek.

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

In this test, 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, which is the beginning of each layer, and progressing towards the outer tracks for each layer.

From the manufacturer's specifications, the Optorite DD0401 has a maximum reading speed of 8x with dual layer DVD-ROM discs. The drive however recorded a maximum reading speed of 8.59x. As can be seen from the graph above, the Optorite drive is faster in all three modes compared to the other two drives.

Just as with cd-r media, on DVD media the Optorite returned low seek times. The drive returned a random seek time of 102ms, slightly faster than the Philips drive with 105ms.

- 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 for the second layer of the disc. The beginning of the second layer is located in the outer part of the disc, so the drive continues its reading of the second layer beginning from the outer tracks and continuing inwards towards the inner tracks of the disc (instead of returning to the inner tracks and reading towards the outer tracks as is the case with a PTP disc).

- DVD Ripping Tests

We measured the DVD-Video ripping speed of the Optorite DD0401 using the latest version of DVD Decrypter. The DVD Video title was the "Matrix" pressed DVD (single layer, 4.38GB).

In the DVD Video reading/ripping test, the Optorite DD0401 (12x CAV) ripped the DVD movie files to the hard disk at 5.839 KB/s (6.1x) average. Compared to the Philips DVDR824P drive, the Optorite drive is significantly slower.

- DVD Recordable / Rewritable reading Tests

The graph below shows the Nero CDSpeed results with the following media:

This drive proved a very fast reader. On both plus and minus formats, the Optorite DD0401 managed to read the tested discs faster than the other two drives included for comparison. The reported average reading speed is 6.28x for the +RW format and 6.3x for the +R format.

As for the dash format, NeroCdSpeed reported that the Optorite drive reads the -R format at an average speed of 6.31x and the -RW at 6.28x.

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