LiteOn combo SOHC
DVD reading tests
- Single Layer DVD-ROM (Click
for CDSpeed results)
For getting more realistic results in the reading tests we compared LiteOn
SOHC-5232K with the TEAC DW-548D. Both are combo drives and have
the same 16x reading speed for DVD-ROM.
In the DVD single layer read test, both drives performed identically,
reaching 16x as expected.
There's not a lot of difference in the seek times, but the LiteOn drive
had the better seek times which means faster response to software commands.
- 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 the beginning
of each layer,
and progressing outwards towards the outer tracks for each layer.
The pattern continues. Not a lot of difference amongst the drives.
So far, quite good times for both drives.
Once more, the LiteOn drive was faster than Teac in the random
seek time modes.
- 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 second layer on 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
inwards towards the inner tracks of the disc.
The LiteOn drive performance was streamlined, starting from 4x and ending
the first layer at 8x. On the second layer the drive's ending speed was 4x,
absolutely mirrored as the drive reads back towards the inner
tracks. This is the normal behavior
a drive should perform with CAV.
- DVD Recordable / Rewritable reading Tests
The chart below shows the Nero CDSpeed average reading speed results with
the following media:
Both drives gave similar results, with LiteOn having the slight leading.