LiteOn SOHC-5232K combo
4. DVD reading tests
LiteOn combo SOHC 5232K - Page 4
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 CDSpeed results)
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 and 1/3 seek time modes.
- Dual Layer OTP DVD-ROM
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 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.
