DVD-ROM Roundup Vol.4 - Page 12

167T vs S300

- Single Layer Media

To check exactly what the LiteOn SOHD-167T reports and how different the new chipset inside the new LiteOn drive is compared with the older drives, we used different media, burned on other recorders. These media have been measured with the well known AudioDev SA300 DVD CATS system at 1X.

Since all LiteON drives reports only PI/PIF errors, we will compare those measurements at three reading speeds:

• 3~8X CAV
• 2~6X CAV
• 4X CLV

Please note that the posted results are only valid for the specific tested SOHD-167T drive. Using other 167T drives can produce totally different results. Be aware!

PISum8/PIF Comparison - 8X Reading speed

The trend line is similar for both scans while the values themselves are also quite close.

PISum8/PIF Comparison - 6X Reading speed

The trendline is similar here too but this time the values are quite different.

PISum8/PIF Comparison - 4X Reading speed

Once again the trend line is similar but the values very different.

- Double Layer Media

For checking exactly what the SOHW-1633S reports, we used three different media, burned with other recorders. The three media have been measured using the well known AudioDev SA300 DVD CATS system at 1X.

The drive is capable of reporting PI/PIF errors, so we will compare those measurements at various reading speeds:

• 3~8X CAV
• 2~6X CAV

Please note that the posted results are only valid for the specific tested LiteON SOHW-1633S drive. Using other drives, even another SOHW-1633S, can produce totally different results. Be aware!

PISum8/PIF Comparison - 8X Reading speed

Only the PIF scans are similar for the two scans. The PI sum is totally different.

PISum8/PIF Comparison - 4X Reading speed

Nothing in common...