For checking exactly what the AOpen DUW1608 reports, we used four different media, burned with other writers. The three media have been measured with the well known AudioDev SA300 DVD CATS system at 1X. We used the latest version of CDSpeed, with a special switch to turn this function on. DVDinfoPro can be used to work with the drive, but there are some consern about what it reports exactly. Please note that the posted results are only valid for the specific tested AOpen drive. Using other drives, even another DUW1608, can produce totally different results. Be aware!

• Test Disc #1

This test did not finish. In the case of PI sum, the trend lines are similar but the values are very different. On the other hand, in the case of PIF, the burner does not seem to report these values so there is no base for comparison.

• Test Disc #2

Once again the PI sum trend lines are similar.

• Test Disc #3

• Test Disc #4

Neither the trend lines nor the values for PI sum are similar.