BD Write and ReWrite Tests - Nero CD Speed v4.7.7.16:
To test the BD writing performance of Plextor's new drive I used BD-R, BD-R DL and BD-RE media from Memorex, 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 PX-B940SA could read them back. .
The PX-B940SA is the first drive from Plextor that can write to both BD-R and BD-R DL media at 12x. Looking at the screenshot above, you can see that the drive uses CAV when writing to BD-R discs at this speed.
| Plextor PX-B940SA |
Pioneer BDR-2203 |
LG BH08LS20 |
Sony BWU-300S |
|
| BD-R | 10:55 | 14:53 | 13:13 | 13:48 |
| BD-RE | 45:20 | 45:07 | 39:21 | 45:03 |
| BD-R DL | 25:06 | 30:08 | 31:32 | 27:30 |
The PX-B940SA performed very well when writing to BD-R media. It completed our tests in record time, beating the LG BH08LS20 by more than two minutes. Plextor's new drive didn't disappoint when writing to BD-R DL media either. Even with its writing speed limited to 8x, the PX-B940SA took a little more than 25 minutes to burn an entire 50GB disc.
| Manufacturer ID | Max Write Speed |
Write Time | ||
| Memorex 25GB 2x BD-RE | MEI T01 | 2x | 45:19 | Transfer Rate |
| Moser Baer 25GB 6x BD-R | MBI R06 | 10x | 11:17 | Transfer Rate |
| Sony 25GB 6x BD-R | SONY NN3 | 12x | 10:55 | Transfer Rate |
| TDK 25GB 6x BD-R | TDKBLDRBD | 10x | 11:19 | Transfer Rate |
| TDK 50GB 6x BD-R DL | TDKBLDRFD | 8x | 25:06 | Transfer Rate |
| TDK 50GB 2x BD-RE DL | TDKBLDWfa | 2x | 90:34 | Transfer Rate |
| Verbatim 25GB 2x BD-RE | VERBATIM0 | 2x | 45:20 | Transfer Rate |
The PX-B940SA 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:
While Plextor's new Blu-ray Disc writer had a few rough spots, it performed pretty well throughout most of our tests. The PX-B940SA 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 drive either. The PX-B940SA was able to read single layer BD-ROM's as well as recordable BD media at speeds near 8x.
The PX-B940SA also did reasonably well in our CD and DVD read tests. While its seek times were a higher than I would have liked, the drive read CD's at speeds as high at 42x and single layer data DVD's and DVD±R media at 16x. When it came to writing CD's and DVD's, the PX-B940SA held its own throughout most of our tests and the writing quality was, for the most part, quite good. With all things considered, the Plextor PX-B940SA gets a solid 8 out of 10 for the performance section of this review.
