BD Write and ReWrite Tests - Nero CD Speed v4.7.7.16:
To test the BD writing performance of LG's new drive I used BD-R, BD-R DL and BD-RE media from Moser Baer, Sony, TDK and Verbatim. To get the writing times, CD Speed's "Create Data Disc" feature was used. I also ran the discs through CD Speed's transfer rate test to make sure that the BH12LS38 could read them back.
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The BH12LS38 is one of the few drives capable of writing to both BD-R and BD-R DL media at 12x. When writing to 25GB BD-R discs at this speed, the drive starts at 6x and quickly accelerates, reaching 11x at the 11.5GB mark. From there, the acceleration tapers off and the drive doesn't reach 12x until the end of the disc. Looking at the other screenshot, you can see that the BH12LS38 isn't nearly as aggressive when writing to 50GB BD-R DL media. This time around, the drive starts writing at 5.2x and doesn't reach 12x until the 22.5GB mark.
| LG BH12LS38 |
Plextor PX-LB950UE |
Sony BWU-500S |
Lite-On iHBS112 |
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| BD-R | 9:51 | 11:28 | 11:37 | 11:26 |
| BD-RE | 39:39 | 44:55 | 44:51 | 44:49 |
| BD-R DL | 21:43 | 31:29 | 33:00 | 31:54 |
The BH12LS38 performed very well when writing to BD-R media. It completed our tests in record time, beating the other drives by more than a minute and a half. LG's new drive didn't disappoint when writing to BD-R DL media either. Thanks to its 12x writing speed, the BH12LS38 took less than 22 minutes to burn 50GB worth of data.
| Manufacturer ID | Max Write Speed |
Write Time | ||
| Moser Baer 25GB 6x BD-R | MBI R06 | 10x | 11:16 | Transfer Rate |
| Sony 50GB 6x BD-R DL | MEI RB1 | 12x | 21:43 | Transfer Rate |
| TDK 50GB 2x BD-RE DL | TDKBLDWfa | 2x | 90:21 | Transfer Rate |
| Verbatim 25GB 2x BD-R LTH | VERBATIMw | 2x | 45:20 | Transfer Rate |
| Verbatim 25GB 6x BD-R | VERBATIMe | 12x | 9:51 | Transfer Rate |
| Verbatim 25GB 2x BD-RE | VERBATIM0 | 2x | 39:39 | Transfer Rate |
The BH12LS38 completed our Blu-ray writing tests without any problems. The drive wrote to all of our test media at its rated speeds or better and, looking at the transfer rates, you can see that it had no problems reading the discs back.
Performance Revisited:
Like LG's previous Super Multi Blue drives, the BH12LS38 performed pretty well throughout most our tests. The drive flew through our BD writing tests, turning in some very impressive times with BD-R and BD-R DL media. Reading Blu-ray Discs wasn't a problem for the BH12LS38 either. The drive was able to read BD-R discs at 10x and both BD-RE and BD-R DL media at 8x, but slowed to 4.8x when reading AACS protected BD-ROM's.
The BH12LS38 also did reasonably well in our CD and DVD read tests. Along with some fairly good seek times, the drive read CD's at speeds as high at 48x and single layer data DVD's and DVD±R media at 16x. When it came to writing CD's and DVD's, the BH12LS38 held its own throughout most of our tests and the writing quality was, for the most part, quite good. With all things considered, the LG BH12LS38 gets a solid 8 out of 10 for the performance section of this review.
