ASUS DRW-1604P DL Recorder - Page 2
Transfer Rate Reading Tests
- CD Format
All drives except the Plextor PX-712A support 40X CD-ROM reading speed. The
ASUS DRW-1604P performed well with both the CD-ROM and CD-R test discs. With
US-RW media, due to its lower reading speed (32X), the drive had the slowest
speed among the drives.
- DVD Format
All the tested drives support 16X CAV reading speed with SL
discs. The ASUS drive gets third place with an averafe speed of 12.02X, just
behind the BenQ DW1600A. While the ASUS drive starts with the second highest
reading speed,
its
end speed
is slower,
which is why the BenQ drive overall has a faster average speed.
The two layers of a PTP DVD-ROM disc are read sequentially
with the drive starting reading from the inner part of the disc, which is the
beginning of each layer, progressing towards the outer range for each layer.
The ASUS drive had the slowest performance at 5.44X average speed.
The graph shown above indicates the reading performance of
the DRW-1604P with OTP dual layer media. The first layer of an OTP dual layer
DVD-ROM is read exactly the same way as the first layer of the PTP disc we
tested previously.
The difference here is the reading strategy of the second layer of the disc.
The beginning of the second layer is located in the outer part of the disc,
so the drive starts reading from the outer tracks progressing toward the inner
part of the disc. The average reading speed was 9.40X, with a perfect reading
graph.
The ASUS drive performed according to its specifications with 12X CAV for DVD±R and 8X CAV DVD±RW discs..
The ASUS drive has a lock rip limit and gave the lowest ripping time at
5816Kb/s.
- DVD-RAM
The ASUS DRW-1604P can read DVD-RAM at only 2X CLV, according to the
specs. For our test we used a 5X DVD-RAM disc from Maxell, burned with the
LG GSA-4120B. The CDSpeed graph confirms ASUS specs, since the disc was read
at 2X CLV:
-Appendix
Nero CD-DVD Speed Graphs
