Sony DRX-S90U Portable 8x DVD Writer

Nero CD Speed v4.7.7.16 - DVD-ROM:

For this test I used a single layer, single sided data DVD-ROM disc that is 4.37GB in size.

 

The DRX-S90U performed pretty well when reading single layer DVD-ROM's. In our tests it started reading at 3.31x and reached a maximum transfer speed of about 8.05x. Unfortunately, like in our CD read tests, the drive's access times were a bit high.

Nero CD Speed v4.7.7.16 - DVD-R, DVD-RW and DVD-RAM:

First, we'll look at the drive's DVD-R and DVD-RW reading performance. For this I made copies of our DVD-ROM test disc using some general use 8x DVD-R and 6x DVD-RW media from Verbatim and then ran our usual DVD read tests with CD Speed. For the DVD-RAM tests, media from Maxell was used. The results are below.

Verbatim DVD-R
 

	Transfer Speed			Access Times			CPU Usage
	Average	Start	End	Random	1/3	Full	1x	2x	4x	8x
Sony DRX-S90U	6.04x	3.32x	8.07x	136ms	176ms	275ms	7%	14%	28%	53%

Verbatim DVD-RW

	Transfer Speed			Access Times			CPU Usage
	Average	Start	End	Random	1/3	Full	1x	2x	4x	8x
Sony DRX-S90U	6.03x	3.32x	8.07x	138ms	178ms	278ms	7%	14%	29%	53%

Verbatim DVD-R DL
 

	Transfer Speed			Access Times			CPU Usage
	Average	Start	End	Random	1/3	Full	1x	2x	4x	8x
Sony DRX-S90U	6.06x	3.36x	8.07x	157ms	184ms	279ms	6%	15%	n/a	n/a

The DRX-S90U had no problems reading DVD-R, DVD-RW and DVD-R DL media. In all three cases, the drive reached a maximum transfer speed of about 8x.

Maxell 5x DVD-RAM
 

	Transfer Speed			Access Times			CPU Usage
	Average	Start	End	Random	1/3	Full	1x	2x	4x	8x
Sony DRX-S90U	4.62x	2.97x	5.00x	221ms	320ms	393ms	7%	15%	26%	n/a

Sony's new drive has a maximum transfer speed of 5x when reading DVD-RAM discs. By looking at the screenshot you can see that it starts reading at about 3x and then accelerates, reaching 5x at about the 1.7GB mark. 

Nero CD Speed v4.7.7.16 - DVD+R and DVD+RW:

Next we'll look at the drive's DVD+R and DVD+RW reading performance. For this I made a copy of our DVD-ROM test disc using some 8x DVD+R and 8x DVD+RW media from Verbatim. I then ran our usual DVD read tests with CD Speed. The results are below.

Verbatim DVD+R
 

	Transfer Speed			Access Times			CPU Usage
	Average	Start	End	Random	1/3	Full	1x	2x	4x	8x
Sony DRX-S90U	6.03x	3.32x	8.07ms	141ms	185ms	281ms	7%	14%	25%	52%

Verbatim DVD+RW

	Transfer Speed			Access Times			CPU Usage
	Average	Start	End	Random	1/3	Full	1x	2x	4x	8x
Sony DRX-S90U	6.05x	3.33x	8.09x	175ms	212ms	316ms	7%	15%	27%	49%

Verbatim DVD+R DL

The DRX-S90U's performance was very similar to what we saw with DVD-R, DVD-RW and DVD-R DL media. Once again, the drive reached a maximum transfer speed of about 8x.

Nero CD Speed v4.7.7.16 - DVD-Video:

For these tests I am using the US version of Transformers: The Movie on DVD. The disc is over 4GB and single sided.

 

	Transfer Speed			Access Times			CPU Usage
	Average	Start	End	Random	1/3	Full	1x	2x	4x	8x
Sony DRX-S90U	5.96x	3.27x	7.97x	138ms	165ms	262ms	12%	13%	n/a	n/a

The DRX-S90U didn't slow down very much when reading single layer DVD videos. In our tests, it reached a maximum speed of 8x when reading both single and dual layer discs.

To see how well the DRX-S90U worked as a DVD player, I watched a few scenes from Transformers: The Movie and Star Wars: Revenge of the Sith using Nero Showtime. The drive had no problems playing back these movies and was fairly quiet.