BD Write and ReWrite Tests - Nero CD Speed v4.7.7.16:
To test the BD writing performance of Sony's new drive I used BD-R, BD-R DL and BD-RE media from Panasonic, 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 BWU-300S could read them back. .
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The BWU-300S is one of the first drives that can write to both BD-R and BD-R DL media at 8x. Looking at the screenshots above, you can see that the drive starts writing at 4x and then accelerates, reaching 8x at the 13GB mark.
| Sony BWU-300S |
LG GGW-H20L |
Lite-On DH-4B1S |
LG GGW-H10N |
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| BD-R | 13:48 | 21:25 | 24:05 | 27:29 |
| BD-RE | 45:03 | 39:24 | 46:25 | 45:14 |
| BD-R DL | 27:30 | 44:57 | failed | 90:22 |
The BWU-300S performed very well when writing to BD-R media. It completed our tests in record time, beating the GGW-H20L by more than seven minutes. Sony's new drive didn't disappoint when writing to BD-R DL media either. Thanks to its 8x writing speed, the BWU-300S took 27 and a half minutes to burn an entire BD-R DL disc.
| Manufacturer ID | Max Write Speed |
Write Time | ||
| Panasonic 25GB 6x BD-R | MEI RA1 | 8x | 13:48 | Transfer Rate |
| Panasonic 50GB 6x BD-R | MEI RB1 | 8x | 27:30 | Transfer Rate |
| Sony 25GB 2x BD-RE | SONY ES1 | 2x | 45:17 | Transfer Rate |
| TDK 25GB 6x BD-R | TDKBLDRBD | 6x | 16:10 | Transfer Rate |
| TDK 50GB 6x BD-R DL | TDKBLDRFD | 6x | 34:26 | Transfer Rate |
| Verbatim 25GB 4x BD-R | VERBATIMa | 4x | 22:56 | Transfer Rate |
| Verbatim 25GB 2x BD-RE | VERBATIM0 | 2x | 45:18 | Transfer Rate |
The BWU-300S completed our Blu-ray writing tests without any problems. Take note that if you want to write at 8x, you're going to need to use 6x BD-R media from Panasonic or Sony. Currently, these are the only BD-R discs that the GGW-H20L will write to at this speed.
Performance Revisited:
While Sony's new Blu-ray Disc writer has a few rough spots, it performed pretty well throughout most of our tests. The BWU-300S completed our BD writing tests in record time and reached some impressive speeds when reading BD-ROM's and both BD-R and BD-R DL discs. The drive was also fairly quick when reading DVD's and turned in some respectable times with DVD±R and DVD±RW media. Unfortunately, the BWU-300S didn't perform quite as well when reading CD's as it had a hard time reaching its rated speeds. With all things considered, the Sony BWU-300S gets an 8 out of 10 for the performance section of this review.
