LiteON SOHD-167T

LiteOn SOHD-167T - Page 1

The SOHD-167T is the latest internal half-height DVD-ROM from LiteON. The drive supports 16X DVD-ROM and 48X CD-ROM reading speeds, exactly the same as the previous models, the XJ-HD163 and the XJ-HD165H. We will compare the three drives in an attempt to find out if the newer model has any improvements over its predecessors, and in general see how it performs under our usual suite of tests.

- Specifications

LiteOn	SOHD-167T
Interface	ATAPI - E/IDE
Read Speed	DVD-ROM: 16X Max (21,350KB/sec) CD-ROM: 48X Max (7,200KB/sec)
Access Time	DVD: 105ms ( typical ) CD: 95ms ( typical )
Supported Disc Format	Multi-Read UDF, all DVD single/dual layer ( PTP, OTP ), DVD-R, DVD-RW, DVD+RW, CD, CD-R, CD-RW ISO-9660, all CD-ROM formats both 8cm & 12cm discs
Buffer Size	512KB
Supported Disc Diameter	8cm/12cm
Mount Position	Horizontal/Vertical
Dimensions (W x H x D)	145.8 x 41.3 x 170.0mm
Weight	0.8Kg

The drive uses a 512KB buffer memory and below we can see the supported reading formats. Note that reading DVD-RAM is not supported, but the drive can read DVD+R DL.

DVDInfoPro gives us some additional details about the drive's capabilities as well:

The drive's model name, SOHD-167T, is coded according to the SONY Alliance Models ODD Naming Rule:

S: SONY
O: Optical
H: Half-Height Optical Loader
D: DVD-ROM ODD Type
16: Main reading DVD speed
7:
T: ???? Pickup Supplier

The drive also uses the RPC II region control, allowing a user to change the drive's region at most 5 times, which however can easily be bypassed with various utilities.

Lastly, let's see what additional information KProbe software returns for LiteON based drives:

- The package

The retail box includes the internal drive, one audio cable for the internal connection to the sound card, mounting screws, quick installation guide and one CD with PowerDVD 5 Software, Manual and DOS driver.

On the front, there is the DVD-ROM and the compact disc logos located on the tray. The phone jack, sound level control and the activity led are located on the left side and below the disc tray. On the right side there is the eject button.

On the rear panel you can see the analogue and digital outputs (SPDIF), the IDE connector and the power input.

The drive is a half-height internal device, much shorter than the usual CD/DVD recorder, making mounting in small form-factor PC cases an easy task. Below you can see a picture of the drive with noticeably smaller dimensions compared with the older 163 drive.

Removing the screws and opening the drive's cover voids the drive's warranty. For reference reasons, we post the following pictures. You can click on the mainboard picture for a higher resolution image:

Inside the LiteOn SOHD -167T, there is the MT1358E from MediaTek Inc. The board as well as the servo control unit come from SONY.

- Installation

The drive was installed as secondary master and WindowsXP recognized it as "LITE-ON DVD SOHD-167T". The drive arrived with firmware v9S13. LiteON released a newer firmware, v9S14 and by the time all tests were finished, v9S15 had been released. It's not exactly known what the newer firmware fixed.

Codeguys offers two un-official firmware releases at 9S14 and 9S15, which allow reading of ±R/RW discs up to 16X and +R DL up to 10X!

- Testing software

In order to perform our tests we used: