CD Write and ReWrite Tests - Nero Burning Rom 7.10.1.0 andDLA 5.20:
For this test I randomly generated 650MB and 700MB of files and directories to test the time it takes the drive to write and close a CD. All of the files are between 1MB and 25MB in size and no more than 10 directories deep.
The GGC-H20L has a maximum CD writing speed of 40x. To reach this speed, it uses P-CAV, or Partial CAV, technology. By looking at the screenshot, you can see that the drive starts writing at 20x and accelerates, reaching 40x at about the 55 minute mark. This gave LG's Super Multi Blue drive an average writing speed of about 33.33x.
To test the drive's writing times, I wrote our test data to some Taiyo Yuden manufactured Fujimedia rated at 48x. The results are below.
| Size in MB | Size in Time | LG GGC-H20L |
ASUS BC-1205PT |
LG GGW-H20L |
Sony BWU-100A |
| 701MB | 79:44:21 | 2:53 | 4:47 | 2:52 | 4:45 |
LG's new drive did very well in our CD writing tests. Thanks to its 40x CD writing speed, the GGC-H20L was able to write an entire 701MB CD in 2:53, beating the drives from ASUS and Sony by nearly two minutes.
To test the drive's writing quality I used Lite-On IT's KProbe2. Written by Karr Wang, this utility can be used to test the number of C1 and C2 errors on a disc. For these tests I used a Lite-On LTR-52246S (firmware 6S0F) and read the discs at 32x.
|
|
|
 Verbatim 52x |
The GGC-H20L's writing quality was very good. By looking at the KProbe screenshots, you can see that the discs burned by the drive had a low number of C1 errors. More importantly, there were no C2 errors at all.
For the rewriting tests I created 400MB of files on the hard drive and wrote them in DAO mode using Nero. To test the packet writing speeds I copied and pasted the same files off the hard drive onto a CD-RW disc using DLA from Sonic. Verbatim's 24x Ultra Speed CD-RW media was used for these tests.
While the GGC-H20L uses P-CAV when writing to CD-R discs, it uses Z-CLV, or Zone CLV, when rewriting at 24x. The drive starts rewriting at about 16x and then jumps to its maximum speed at the 9 minute mark.
| Software | LG GGC-H20L |
ASUS BC-1205PT |
LG GGW-H20L |
Sony BWU-100A |
| Nero | 2:28 | 2:48 | 2:27 | 3:25 |
| DLA Write | 2:33 | 2:44 | 2:32 | 3:34 |
| DLA Read | 1:06 | 2:52 | 1:17 | 2:22 |
LG's new drive did very well in our rewriting tests. Thanks to its 24x rewriting speed, the GGC-H20L took 2:28 to write 400MB with Nero and 2:33 to do the same with DLA.
| LG GGC-H20L |
ASUS BC-1205PT |
LG GGW-H20L |
Sony BWU-100A |
|
| Quick Erase | 19 seconds | 15 seconds | 20 seconds | 19 seconds |
| Full Erase | 3:45 | 3:53 | 3:42 | 5:13 |
The GGC-H20L also erases at 24x. At this speed, it took the drive 19 seconds to do a quick erase and 3:45 to fully erase the disc.
