Greetings everyone :-)
PIF is the number of rows within an ECC Block with too many bad bytes to allow error correction
... through PI error correction system. I.e. error correction can still take place through the PO (parity outer) system. ;)
That was for the record. :)
Now the reason why I'm posting here is that after having thouroughly examined all of the Datarius results you have posted in this article and in previous tests posted since you have the analyser, I'm enclined to think, from the systematically out-of-specs results for about any disc tested, that something isn't quite right. I wouldn't be surprised that there is something wrong either with the Datarius analyser itself, or with its calibration (most likely).
Do you calibrate the analyser before each test with the Philips reference disc?
I would really like to see tests performed with your Datarius on commercialy pressed DVD-ROM and DVD-Video. This would give a reference to understand what's up.
Also you could ask the company itself if they consider the results that you get with their analyser as consistent with what other users of the Datarius system get....