1/ From DVDinfopro, I believe my EEPROM is removed by propose by maintenance staff. Please see attached
2/ The current firmware is GSB9. Please see attached.
3/ I have used a number of different media says, PRODISC R02, TY and CMC.
4/ Yes, it can detect media. Please see attached.
5/ I use the drive to read when ripping DVD movie and test media with Kprobe onlly. Of course it is excellent when writing CD and CDRW.
I think it is the missing of the EEPROM that make my drive unable to write DVD. Is it right?