Philips DVDRW885K Double Layer - Page 12

KProbe PI/PIF quality results

The following screenshots show the PI/PIF scans for various DVD-/+R and DVD-/+RW media, recorded with the Philips drive at the maximum permitted speed.

The software used for the measurements was KProbe v2.1.0, the ECC was set to 8 and the reading at 8x, with the LiteOn LDW-811s as the reader. The specific methodology is very dependent on the drive used as a reader, while the reliability of the PI/PIF provided output is also not technically confirmed. Hence, we cannot safely come up with conclusive results, although we do make a comparison of the drive behavior when using various DVD recordable/rewritable media.

The recordable discs we used came from Traxdata, CMC, Philips, Mitsubishi Chemicals , BenQ and MMore. Further details about each disc type are presented at the bottom of this page.

• CMC Magnetics DVD+R 8x (Recorded at 8x)

• Philips 8x DVD+R (Recorded at 8x)

• Traxdata 8x DVD+R (Recorded at 8x)

• Traxdata 4x DVD+R (Recorded at 8x)

• BenQ 4x DVD+R (Recorded at 8x)

• Plextor 8x DVD+R (Recorded at 8x)

• MCC 4x DVD+R (Recorded at 8x)

• MMore 4x DVD+R (Recorded at 4x)

• 3A 8x DVD+R (Recorded at 8x)

• Maxell 4x DVD+RW (Recorded at 4x)

Servo error reported.

• Mitsubishi Kagaku 4x DVD+RW (Recorded at 4x)

Servro error reported.

• Traxdata 4x DVD+RW (Recorded at 4x)

Servo error reported.

• CMC 4x DVD+RW (Recorded at 4x)

Servo error reported.

In this case, Kprobe reported servo error at the end of the disc. We tried twice to burn the media but both times the same message was produced. Both recorded media were brand new.

Kprobe reported quite acceptable PI/PIF mesurements for almost all written media with the Philips writer. However there were a few cases with increased PI/PIF values and one with error. As for the servo errors with DVD+RW media, it is not a problem of the Philips drive but probably a bug from Kprobe.