CD Write and ReWrite Tests - Nero Burning Rom 7.10.1.0 and DLA 5.20:

For this test I randomly generated 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. All of the times below include not only the actual writing time, but the lead in and out times too. This gives a more realistic idea of how long it takes to write a CD.

The DRW-2014L1T has a maximum CD writing speed of 48x. To reach this speed, it uses CAV, or Constant Angular Velocity. With Taiyo Yuden's 52x media, the drive started writing at about 20.88x and reached a maximum speed of 47.11x at the end of the session. This gave ASUS's new DVD±RW an average writing speed of about 35.66x.

To test the drive's writing times, I wrote our test data to some Taiyo Yudenmedia rated at 52x. The results are below.

Size in MB Size in Time ASUS
DRW-2014L1T
Samsung
SH-S203N
Lite-On
DH-20A3H
LG
GSA-H55L
701MB 79:44:21 2:53 2:55 2:46 2:44

While faster than the SH-S203N, the DRW-2014L1T took longer than expected to complete our CD writing tests. It trailed behind the drives from Lite-On and LG, taking 2:53 to write an entire 701MB CD.

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.


FTI 52x


Imation 52x (MBI)


Taiyo Yuden 52x

The DRW-2014L1T'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 and 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 32x Ultra Speed CD-RW media was used for these tests.

The DRW-2014L1T uses CAV when writing to CD-R discs, it uses Z-CLV, or Zone CLV, when rewriting at 32x. By looking at the screenshot above, you can see that it uses a total of three "zones" to reach its maximum speed. The drive starts writing at 16x and jumps to 24x at about the 19 minute mark.The DRW-1814BLT writes at this speed until about the 54 minute mark. When it reaches this point, its writing speed increases to 32x and stays there until the end of the session.

Software ASUS
DRW-2014L1T
Samsung
SH-S203N
Lite-On
DH-20A3H
LG
GSA-H55L
Nero 2:46 2:22 2:57 2:40
DLA Write 2:47 3:26 2:50 2:33
DLA Read 1:11 1:16 1:28 2:20

ASUS's new DVD writer didn't do as well as some of the other drives in our rewriting tests. Due to its Z-CLV writing method, the DRW-2014L1T took 2:46 to write 400MB with Nero and 2:47 to do the same with DLA.

  ASUS
DRW-2014L1T
Samsung
SH-S203N
Lite-On
DH-20A3H
LG
GSA-H55L
Quick Erase 26 seconds 18 seconds 22 seconds 14 seconds
Full Erase 3:46 3:14 3:50 5:01

The DRW-2014L1T also erases at 32x. While it didn't have the fastest quick erase time out of the four drives here, it was able to do a full erase in a respectable 3:46.