Philips DVDRW885K Double Layer - Page 17

For checking exactly what the DVDRW885K reports with CDSpeed Quality Test, we used three different media, burned on other recorders. Each media was then measured with the well known AudioDev SA300 DVD CATS system at 1X.

The Philips drive supports only PI and Jitter. We will compare our CDSpeed Quality Test results at the following reading speeds against the CATS system measurements :

• 3~8X CAV
• 2~6X CAV
• 4X CLV

Please note that the posted results are only valid for the specific tested DVDRW885K drive. Notice that using other 885K drives can produce totally different results.

#3rd Test Disc - PISum8 Comparison - 8X Reading speed

At the 8X reading speed, the drive reported a rather close PI/PIF error trend line to what the SA300 system measured. Of course, the values are not the same but nonetheless we can say it was a good performance.

#3rd Test Disc - PISum8 Comparison - 6X Reading speed

#3rd Test Disc - PISum8 Comparison - 4X Reading speed

This time the Jitter levels are increased in comparison with the previous two reading speeds. The true reading speed proved to be aproximately 1~2X.

The results from Plextools approaches the trend seen in the CATS graph, but once again the values are different. As for the Jitter, only in the last case does it seem to have similar values with the CATS results. Apart from this, the trend is the same for all speeds.