Need urgent help!

I am having problems burning dvds with my new Plextor 712A.
I have burnt two Fuji DVD+R 4x in Nero as data dvds containing video files. The dvd media code is RICOHJPNR01 and they have been burnt at 8x speed, both burns was reported as succesfull and the Transfer Rate Tests in Nero CD-DVD Speed went fine, but then when i tested them in PlexTools Q-Check PI/PO test, i was shocked over the extremely bad results i got.
What can be the cause to this high PI count? Is it the media that is bad the Plextor Drive or maybe something else? Please help me. :sad:

I have attached all the images.

have you flash with the new firmware ?

http://soft.burnbest.com/plextor/712A_103.exe

Try to find better help here in the Plextor forum:
http://club.cdfreaks.com/forumdisplay.php?f=43