Nero CD Speed v4.51 - DVD-ROM:
A little editorial note here. Like a CD-ROM, you will get different benchmark results depending on what kind of discs you are using. You are probably going to get varying results from a full data disc to a single layer movie disc. You're also going to get different results for single and dual layer discs.
The CD Speed website recommends using a single layer DVD-ROM disc with a capacity of at least 4GB. If you use a dual layer disc you probably won't get the best results because most DVD-ROM drives slow down to read them. Some even slow down to read single layer DVD-Video discs. To make a long story short, I am using a 4.37GB single layer, single sided disc for this test.
| Plextor PX-760A |
Lite-On SHM-165H6S |
NEC ND-4550A |
LG GSA-4167B |
|
| Transfer Speed Average: Start: End: |
12.06x 6.63x 16.13x |
12.11x 6.45x 16.20x |
11.94x 6.57x 15.97x |
12.34x 6.80x 16.51x |
| Seek Times Random: 1/3: Full: |
102ms 113ms 189ms |
115ms 135ms 213ms |
136ms 148ms 226ms |
105ms 121ms 189ms |
| CPU Usage 1x: 2x: 4x: 8x: |
5% 9% 17% 32% |
9% 9% 20% 96% |
15% 15% 28% 52% |
6% 12% 23% 43% |
The PX-760A performed very well when reading single layer DVD-ROM's. In our tests it started reading at 6.63x and reached a maximum transfer speed of 16.13x.Looking at the other scores, you can see that the drive's seek times and CPU usage were also quite good.
Nero CD Speed v4.51 - DVD-R and DVD-RW:
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 4x DVD-R and 2x DVD-RW media from Verbatim and then ran our usual DVD read tests with CD Speed. The results are below.
Verbatim DVD-R
| Plextor PX-760A |
Lite-On SHM-165H6S |
NEC ND-4550A |
LG GSA-4167B |
|
| Transfer Speed Average: Start: End: |
9.05x 4.98x 12.10x |
9.20x 5.04x 12.29x |
11.97x 6.60x 16.01x |
7.71x 4.27x 10.31x |
| Seek Times Random: 1/3: Full: |
103ms 119ms 180ms |
125ms 136ms 229ms |
135ms 156ms 248ms |
99ms 119ms 177ms |
| CPU Usage 1x: 2x: 4x: 8x: |
6% 11% 20% 39% |
5% 8% 25% n/a |
16% 17% 31% 62% |
6% 13% 23% 43% |
Verbatim DVD-RW
| Plextor PX-760A |
Lite-On SHM-165H6S |
NEC ND-4550A |
LG GSA-4167B |
|
| Transfer Speed Average: Start: End: |
9.06x 4.97x 12.11x |
9.20x 5.05x 12.30x |
9.81x 5.40x 13.12x |
6.17x 3.41x 8.25x |
| Seek Times Random: 1/3: Full: |
101ms 119ms 203ms |
110ms 120ms 202ms |
124ms 154ms 251ms |
118ms 144ms 213ms |
| CPU Usage 1x: 2x: 4x: 8x: |
5% 9% 16% 31% |
5% 9% 27% n/a |
9% 15% 28% 50% |
6% 11% 22% 42% |
Plextor's new drive wasn't nearly as fast when reading DVD-R and DVD-RW media. In both cases, the PX-760A reached a maximum transfer speed of about 12.1x.
Verbatim DVD-R DL
| Plextor PX-760A |
Lite-On SHM-165H6S |
NEC ND-4550A |
LG GSA-4167B |
|
| Transfer Speed Average: Start: End: |
6.05x 3.35x 8.08x |
6.05x 3.37x 8.06x |
5.47x 3.04x 7.29x |
6.19x 3.44x 8.26x |
| Seek Times Random: 1/3: Full: |
109ms 121ms 219ms |
124ms 130ms 221ms |
211ms 221ms 316ms |
127ms 152ms 220ms |
| CPU Usage 1x: 2x: |
4% 7% |
6% 9% |
8% 13% |
7% 13% |
The PX-760A had no problems reading Verbatim's 4x DVD-R DL media. In our tests it started reading at 3.35x and reached a maximum transfer speed of 8.08x.
Nero CD Speed v4.51 - 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 4x DVD+R and 2.4x DVD+RW media from Verbatim. I then ran our usual DVD read tests with CD Speed. The results are below.
Verbatim DVD+R
| Plextor PX-760A |
Lite-On SHM-165H6S |
NEC ND-4550A |
LG GSA-4167B |
|
| Transfer Speed Average: Start: End: |
9.04x 4.97x 12.11x |
9.17x 5.09x 12.27x |
11.96x 6.60x 16.00x |
7.72x 4.25x 10.32x |
| Seek Times Random: 1/3: Full: |
104ms 114ms 199ms |
101ms 109ms 185ms |
133ms 154ms 250ms |
97ms 121ms 186ms |
| CPU Usage 1x: 2x: 4x: 8x: |
5% 9% 16% 31% |
10% 7% 25% n/a% |
16% 17% 34% 65% |
6% 12% 23% 42% |
Verbatim DVD+RW
| Plextor PX-760A |
Lite-On SHM-165H6S |
NEC ND-4550A |
LG GSA-4167B |
|
| Transfer Speed Average: Start: End: |
9.06x 4.98x 12.09x |
9.22x 5.11x 12.33x |
9.81x 5.40x 13.12x |
6.18x 3.42x 8.26x |
| Seek Times Random: 1/3: Full: |
104ms 113ms 199ms |
106ms 122ms 195ms |
128ms 160ms 258ms |
119ms 146ms 212ms |
| CPU Usage 1x: 2x: 4x: 8x: |
5% 9% 17% 31% |
8% 10% 29% n/a |
11% 21% 34% 64% |
7% 13% 25% 46% |
The PX-760A's performance with DVD+R and DVD+RW media was very similar to what we saw with DVD-R and DVD-RW media.Here too the drive reached a maximum read speed of about 12.1x.
Verbatim DVD+R DL
| Plextor PX-760A |
Lite-On SHM-165H6S |
NEC ND-4550A |
LG GSA-4167B |
|
| Transfer Speed Average: Start: End: |
6.04x 3.34x 8.07x |
6.05x 3.37x 8.07x |
5.47x 3.04x 7.30x |
6.20x 3.44x 8.27x |
| Seek Times Random: 1/3: Full: |
104ms 115ms 193ms |
111ms 124ms 187ms |
148ms 185ms 294ms |
123ms 148ms 219ms |
| CPU Usage 1x: 2x: |
4% 7% |
6% 8% |
7% 12% |
7% 12% |
Reading Verbatim's double layer DVD+R media wasn't a problem for the PX-760A either. While not as fast as the GSA-4167B, it reached a respectable 8.07x in CD Speed's transfer rate tests.
Nero CD Speed v4.51 - 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.
SpeedRead Disabled - "Quiet Mode"
SpeedRead Enabled
| Plextor PX-760A |
Lite-On SHM-165H6S |
NEC ND-4550A |
LG GSA-4167B |
|
| Transfer Speed Average: Start: End: |
12.06x 6.63x 16.13x |
11.99x 6.62x 16.04x |
11.83x 6.49x 15.82x |
3.64x 2.01x 4.87x |
| Seek Times Random: 1/3: Full: |
102ms 112ms 182ms |
114ms 122ms 197ms |
135ms 147ms 228ms |
117ms 148ms 217ms |
| CPU Usage 1x: 2x: 4x: 8x: |
5% 9% 17% 33% |
7% 10% 20% 97% |
15% 15% 28% 51% |
6% 11% 21% n/a |
The PX-760A has two different modes when reading DVD videos. To reduce noise, the drive reads these discs at 2x by default. While this isn't very fast, you can increase the drive's maximum transfer speed by enabling SpeedRead. With SpeedRead enabled, the PX-760A was able to read single layer DVD videos at 16x and dual layer discs at 12x.
To see how well the PX-760A worked as a DVD player, I watched a few scenes from Transformers: The Movie and Star Wars: The Phantom Menace using WinDVD 4 and PowerDVD 5. Plextor's new drive had no problems playing back these movies with either program and was very quiet when SpeedRead was disabled.
