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Test machine
For this review we will be using a computer with the following configuration:
Hardware:
- Motherboard: Gigabyte GA-P55A-UD4 (Intel P55 chipset)
- Processor: Intel i7 750
- RAM: 8 GB Kingston dual channel kit DDR3
- GFX: ATI HD 5670 (512 Megabytes GDDR5 HDCP compliant)
- Hard disk OS: OCZ Vertex 2 64GB
- Hard disk storage: Samsung Spinpoint F1 1TB (STORAGE HDD)
- PSU: Chieftec 500W
- Display: Fujitsu Siemens 22”
- Operating System: Windows 7 Premium (64 bit)

The LG BP40NS20 was connected to a USB2 port on our test PC. The drive has a 4MB buffer, and it came shipped with firmware version ML01.
Included software package
The LG BP40NS20 came supplied with LG Burning Tool, PowerDVD 3D BD, Power2Go, PowerProducer, MediaShow, MediaEspresso and USBFast, a good multimedia solution for all your basic needs.

BD Solution v6
Note: We did not install this software on our review notebook or test it.
Installed software:
For conducting our various tests, we will be using the following applications.
Features and techniques
BookType (Bitsetting):
The LG BP40NS20 supports bitsetting on dual layer media only and it’s set to DVD-ROM by default.
Here is how you can check if your discs are really written with DVD-ROM book type:
Start OptiDriveControl, click the Disc info button and you should see something like this:

DVD+R DL with BookType DVD-ROM.
Writing technique
Now it’s time to take a first look at the write technology used by the LG BP40NS20.
For these tests we used Nero DiscSpeed and Opti Drive Control, and wrote a full disc at the drive’s maximum speed.
CD Recordable:
According to the specifications of the LG BP40NS20, it should be able to write CD-R media at a maximum speed of 24x.

The LG BP40NS20 uses Z-CLV (Zoned Constant Linear Velocity), to write at its maximum speed of 24x. This gives an average speed of 16.10x and a total writing time of 5 minutes and 34 seconds.
For comparison purposes we have produced the following table:
|
CD-R |
Supported |
Write |
Start |
End |
Average |
Write |
|
Samsung |
24x |
CAV |
11.02x |
24.49x |
18.76x |
5m:02s |
|
Sony |
24x |
CAV |
11.27x |
25.84x |
18.28x |
5m:03s |
|
Lite-On |
24x |
Z-CLV |
10.04x |
24.09x |
14.89x |
5m:57s |
|
Lite-On |
24x |
P-CAV |
10.97x |
24.25x |
17.83x |
5m:07s |
|
LG |
24x |
Z-CLV |
10.14x |
24.15x |
16.10x |
5m:34s |
The LG BP40NS20 is in somewhere in the middle when it comes to CD-R burn speed.
CD Re-writable:
According to the specifications of the LG BP40NS20, it should be able to write CD-RW media at a maximum speed of 24x.

The LG BP40NS20 uses Z-CLV (Zoned Constant Linear Velocity), to write at its maximum speed of 24x. This gives an average speed of 14.90x and a total writing time of 5 minutes and 42 seconds.
For comparison we have made the following table:
|
CD-RW |
Supported |
Write |
Start |
End |
Average |
Write |
|
Samsung |
16x |
Z-CLV |
10.06x |
16.05x |
14.23x |
6m:38s |
|
Sony |
24x |
Z-CLV |
8.00x |
24.07x |
14.71x |
6m:11s |
|
Lite-On |
24x |
Z-CLV |
10.05x |
24.14x |
14.88x |
5m:56s |
|
Lite-On |
24x |
Z-CLV |
10.26x |
24.15x |
14.49x |
6m:06s |
|
LG |
24x |
Z-CLV |
10.14x |
24.16x |
14.90x |
5m:42s |
The LG BP40NS20 is the fastest slimdrive that I have tested so farand it gave the impressive time of 5 minutes and 42 seconds.
8x DVD+R/-R writing speed:
According to the specifications of the LG BP40NS20, it should be able to write DVD+R/-R media at a maximum speed of 8x.

DVD+R
The LG BP40NS20 uses CAV (Constant Angular Velocity), to write at its maximum speed of 8x. This gives an average speed of 5.70x and a total writing time of 10 minutes and 58 seconds.

DVD-R
The LG BP40NS20 uses CAV (Constant Angular Velocity), to write at its maximum speed of 8x. This gives an average speed of 5.64x and a total writing time of 10 minutes and 50 seconds.
For comparison purposes we have produced the following table:
|
8x |
Supported |
Write |
Start |
End |
Average |
Write |
|
Samsung |
8x +R |
CAV |
3.48x |
8.06x |
6.10x |
10m:44s |
|
Sony |
8x +R |
CAV |
3.41x |
8.14x |
5.54x |
11m:14s |
|
Lite-On |
8x +R |
Z-CLV |
3.00x |
8.01x |
4.92x |
12m:44s |
|
Lite-On |
8x +R |
P-CAV |
3.00x |
8.05x |
4.73x |
10m:53s |
|
LG |
8x +R |
P-CAV |
3.41x |
8.18x |
5.70x |
10m:58s |
As we can see from our table, the LG BP40NS20 gave some very impressive results with both media.
8X DVD+RW writing speed:
According to the specifications of the LG BP40NS20, it should be able to write DVD+RW at a maximum speed of 8x.

The LG BP40NS20 uses Z-CLV (Zoned Constant Linear Velocity), to write at its maximum speed of 8x. This gives an average speed of 4.73x and a total writing time of 13 minutes and 2 seconds.
For comparison purposes we have produced the following table:
|
DVD+RW |
Writing |
Average |
Writing |
|
Samsung |
8x Z-CLV |
4.76x |
13m:44s |
|
Sony |
8x Z-CLV |
5.02x |
13m:25s |
|
Lite-On |
8x Z-CLV |
4.79x |
12m:32s |
|
Lite-On |
8x Z-CLV |
4.39x |
13m:29s |
|
LG |
8x Z-CLV |
4.73x |
13m:02s |
The LG BP40NS20 is the fastest drive that I have tested when it come to DVD+RW media.
6x DVD-RW writing speed:
According to the specifications of the LG BP40NS20, it should be able to write DVD-RW at a maximum speed of 6x.

The LG BP40NS20 uses Z-CLV (Zoned Constant Linear Velocity), to write at its maximum speed of 6X. This gives an average speed of 4.71x and a total writing time of 12 minutes and 50 seconds.
For comparison purposes we have produced the following table:
|
DVD-RW |
Writing |
Average |
Writing |
|
Samsung |
6x Z-CLV |
4.56x |
14m:26s |
|
Sony |
6x Z-CLV |
4.25x |
14m:20s |
|
Lite-On |
6x Z-CLV |
4.89x |
12m:39s |
|
Lite-On |
6x Z-CLV |
4.27x |
14m:25s |
|
LG |
6x Z-CLV |
4.71x |
12m:50s |
The LG BP40NS20 is the second fastest drive I have tested, it only needed 12 minutes and 50 seconds to complete a burn at 6x on DVD-RW media, simply impressive.
4x DVD+R DL writing speed:
The LG BP40NS20 is capable of burning dual layer discs at a maximum speed of 6x.

The LG BP40NS20 uses Z-CLV (Zoned Constant Linear Velocity), to write at 6x. This gives an average speed of 4.35x and a total writing time of 25 minutes and 54 seconds.
For comparison purposes we have produced the following table:
|
DVD
DL |
Size |
Writing |
Writing |
Book |
|
Samsung |
8152MB |
DVD+R DL 6x |
26m:08s |
DVD-R ROM |
|
Sony |
8152MB |
DVD+R DL 6x |
26m:04s |
DVD-R ROM |
|
Lite-On |
8152MB |
DVD+R DL 6x |
24m:38s |
DVD-R ROM |
|
Lite-On |
8152MB |
DVD+R DL 4x |
30m:12s |
DVD-R ROM |
|
LG |
8152MB |
DVD+R DL 4x |
25m:54s |
DVD-R ROM |
The LG BP40NS20 is so far the fastest slim drive that I have tested with +R dual layer media.
Summary:
The LG BP40NS20 did show some very impressive performance, especially on re-writable media.
Let’s head on to the next page where we will check reading performance….

