From the liteon results, it doesn't look like a terrible burn.
A decent, not great burn.
Don't trust the pioneer to do any sort of good PI/PO scanning.
The liteon readers do a reasonable job at PI/PO scanning, especially at showing poorly burnt areas and how well a disk handles high speed reading, but it does tend to give results that are higher overall. The liteon DVD-readers also seem to have a bug that results in most ECC blocks having one extra PIF. Thus, an average of > 1 PIF is ok on this drive.