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.
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
6.11x | 3.39x | 8.17x | 183ms | 246ms | 443ms | 8% | 12% | 48% |
The BP40NS20 performed pretty well when reading single layer DVD-ROM's. In our tests it started reading at 3.39x and reached a maximum transfer speed of about 8.17x. 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
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
6.12x | 3.40x | 8.17x | 183ms | 237ms | 410ms | 8% | 12% | 47% |
Verbatim DVD-RW
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
6.13x | 3.39x | 8.20x | 181ms | 236ms | 414ms | 8% | 12% | 49% |
Verbatim DVD-R DL
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
6.14x | 3.42x | 8.18x | 186ms | 226ms | 406ms | 8% | n/a | n/a |
The BP40NS20 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
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
4.70x | 3.03x | 5.08x | 198ms | 224ms | 398ms | 20% | 29% | 49% |
LG'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 3x and then accelerates, reaching 5x at about the 1.6GB 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
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
6.12x | 3.40x | 8.18x | 184ms | 240ms | 415ms | 8% | 12% | 47% |
Verbatim DVD+RW
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
6.14x | 3.42x | 8.20x | 182ms | 230ms | 403ms | 7% | 12% | 49% |
Verbatim DVD+R DL
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
6.14x | 3.46x | 8.19x | 185ms | 223ms | 400ms | 7% | n/a | n/a |
The BP40NS20'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.
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Transfer Speed | Access Times | CPU Usage | ||||||
| Average | Start | End | Random | 1/3 | Full | 1x | 2x | 4x | |
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LG BP40NS20 |
6.05x | 3.35x | 8.09x | 192ms | 239ms | 440ms | 8% | 12% | 50% |
The BP40NS20 didn't slow down very much when reading 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 BP40NS20 worked as a DVD player, I watched a few scenes from Transformers: The Movie and Star Wars: Revenge of the Sith using the bundled version of PowerDVD. The drive had no problems playing back these movies and was fairly quiet.
