LiteOn SOHD-167T - Page 2
Transfer Rate Reading Tests
- CD Format
LiteOn has improved the seek times with pressed & CDR media
while maintaining good transfer rates with all media we used with
the latest SOHD-167T drive.
- DVD Format
No big differences from the previous drives, except the seek times are marginally
better.
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 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 towards the inner part of the disc.
The average reading speed is 6X.
With DVD+R/RW & DVD-R/RW media, the 167T behaved the same
as the other drives.
All LiteON drives can read CSS DVD-Video discs very fast. The best performance
came from the LiteOn 167T at 8715Kb/sec. Notice that with a patched firmware,
you can increase the ripping speed :-)
- DVD RAM
Amongst the three LiteON drives, only the LTD-165H can read DVD-RAM media
at the low speed of 2~3X CAV.
- Appendix
Nero CD-DVD Speed Graphs:
