Nero CD Speed v4.7.7.16 - BD-ROM:
To test the BH08LS20's BD-ROM reading performance, I used the Blu-ray Disc version of The Fifth Element. This single layer disc is about 23GB in size.
| LG BH08LS20 |
Sony BWU-300S |
LG GGW-H20L |
Lite-On DH-4B1S |
|
| Transfer Speed Average: Start: End: |
3.62x 2.02x 4.83x |
6.99x 4.14x 7.99x |
3.61x 2.01x 4.82x |
3.02x 1.67x 3.99x |
| Seek Times Random: 1/3: Full: |
93ms 4ms 3ms |
91ms 171ms 479ms |
117ms 175ms 223ms |
108ms 4ms 3ms |
| CPU Usage 1x: 2x: 4x: 8x: |
0% 0% 1% 2% |
0% 0% 1% 2% |
0% 1% 1% 2% |
2% 1% 3% 4% |
While the BH08LS20 is rated at 8x when reading single layer BD-ROM discs, its speeds are limited to only 4.8x when reading AACS protected titles. In our tests, the drive started reading at 2.02x and reached a maximum transfer speed of 4.83x.
LG's Blu-ray Disc writer had no problems playing back The Fifth Element and The Simpsons Movie using the bundled version of PowerDVD. Just keep in mind that if your monitor is connected to your video card using DVI or HDMI, both need to be HDCP compliant to play AACS protected titles. If not, you can still play them by switching the connection to VGA or using software like Slysoft's AnyDVD HD.
Nero CD Speed v4.7.7.16 - BD-R and BD-RE:
Next we'll look at the drive's BD-R and BD-RE reading performance. For this I created a few data discs using single layer BD-R and BD-RE media from Memorex and Panasonic and then ran our BD read tests with CD Speed.
Memorex BD-R
| LG BH08LS20 |
Sony BWU-300S |
LG GGW-H20L |
Lite-On DH-4B1S |
|
| Transfer Speed Average: Start: End: |
6.09x 3.47x 8.08x |
7.02x 4.25x 7.98x |
4.55x 2.58x 6.04x |
3.02x 1.71x 4.03x |
| Seek Times Random: 1/3: Full: |
104ms 4ms 3ms |
95ms 165ms 464ms |
121ms 167ms 217ms |
109ms 4ms 3ms |
| CPU Usage 1x: 2x: 4x: 8x: |
0% 0% 1% 2% |
0% 1% 1% 2% |
0% 0% 2% 2% |
2% 1% 3% 5% |
Memorex BD-RE
| LG BH08LS20 |
Sony BWU-300S |
LG GGW-H20L |
Lite-On DH-4B1S |
|
| Transfer Speed Average: Start: End: |
3.64x 2.07x 4.84x |
2.00x 1.99x 2.00x |
2.30x 2.29x 2.30x |
1.99x 1.96x 1.99x |
| Seek Times Random: 1/3: Full: |
116ms 4ms 3ms |
101ms 219ms 391ms |
150ms 263ms 766ms |
111ms 10ms 10ms |
| CPU Usage 1x: 2x: 4x: 8x: |
0% 0% 1% 2% |
0% 1% 2% 4% |
0% 1% 2% 2% |
8% 9% 14% 24% |
Panasonic BD-R DL
| LG BH08LS20 |
Sony BWU-300S |
LG GGW-H20L |
Lite-On DH-4B1S |
|
| Transfer Speed Average: Start: End: |
6.10x 3.49x 8.08x |
7.01x 4.27x 8.11x |
3.67x 2.10x 2.12x |
2.00x 1.99x 2.00x |
| Seek Times Random: 1/3: Full: |
106ms 4ms 4ms |
95ms 165ms 378ms |
137ms 181ms 737ms |
114ms 9ms 7ms |
| CPU Usage 1x: 2x: 4x: 8x: |
3% 0% 1% 3% |
0% 0% 1% 2% |
0% 1% 3% 6% |
5% 2% 3% 4% |
LG's new drive had no problems reading BD-R, BD-RE and BD-R DL media. In our tests, the BH08LS20 was able to read both BD-R and BD-R DL media at about 8x and BD-RE discs at 4.8x. For whatever reason, the 1/3 and full seek times were much lower than they should have been.
