Optorite DD1203 Dual DVD±RW Recorder - Page 2
Transfer Rate Reading Tests
- CD Format
The Optorite DD1203 supports up to 40X reading speed for CD media. Our
tests confirmed this. Below are the transfer rate graphs:
The CD reading performance of the DD1203 is not the fastest in
the comaprison but this is due to the fact that the LiteOn and Plextor drives
support 48X speed with CD media.
- DVD Format
The DD1203 drive was slower than both the Plextor and LiteOn drives when using
single layer DVD-ROM media, but again this is due to the speeds supported
by each drive. However, the OptoRite drive did not quite reach 12X reading
speed, as
per the
specs!
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, towards the outer range, for each layer. Here too, the DD1203 was
slower than the Plextor, again due to the supported speeds but this time the
drive managed to reach the manufacturer's stated specs for DL DVD-ROM media
(8X).
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 toward the inner part of the disc. The average
reading speed was at 6.39X.
The DD1203 supports 12X reading speed for all four DVD formats
(-R, +R, -RW, +RW). While the Plextor drive displayed fairly consistent
speeds of
just over 9X regardless of the format, the Optorite and LiteOn drives weren't
quite so steady. With -/+R media, the Optorite drive was just slightly slower
than the Plextor, but with RW media, its performance was way behind.
At 9441 kb/s, the Optorite offers a fast ripping transfer rate but again lags
behind the Plextor drive.
- Appendix
Nero CD-DVD Speed Graphs
