DVD±R/RW recorder- Page 4
DVD reading tests
- Single Layer DVD-ROM (Click
for CDSpeed results)
Again, as was the case with CD media, the Samsung drive's reading speed
is very close to that of the other two drives.
The seek times are also good but again the full seek is a little high.
- Dual Layer PTP DVD-ROM (Click for
The two layers of a PTP DVD-ROM disc are read sequentially with the
drive starting the read process from the inner tracks on the disc, which is
of each layer,
and progressing outwards towards to the outer tracks for each layer.
The DVD dual layer speed results reach a high level.
The seek times continue to be good.
- Dual Layer OTP DVD-ROM
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
of the disc's second layer. The beginning of the second layer is located
in the outer part of the disc, so the drive starts reading from the outer tracks
inwards towards the inner tracks of the disc.
As can been seen from the following screenshot, the OTP dual layer DVD
test disc had the same speed as the PTP. The seek times are at about the
- DVD Ripping Tests
We measured the DVD-Video ripping speed of the Samsung drive using the
latest version of DVD Decrypter. The DVD Video title is the "Matrix" pressed
Here, the Samsung drive was the slowest. The reported
3015 kb/s is a good deal slower than the other two drives.
- DVD Recordable / Rewritable reading Tests
The chart below shows the Nero CDSpeed average reading speed results with
the following media:
Samsung supports DVD-RAM reading and the company
reports that the drive can read DVD-RAM media
with Z-CLV mode at 2x speed (2.7MB/sec). The tested discs were
a Panasonic DVD-RAM type 2 and a Maxell 3x DVD-RAM Ver2.1. Both of
them gave us read errors a little bit before the end.
disc was read at 2x CLV. Below is the same disc read with the Toshiba SD-R5272