Well, I deleted the drive from Device manager, and rebooted. Unfortunately no improvement. Then I flashed the firmware to PFS3. Again the seems to be no improvement.
The only small glimmer of hope is that the drive still recognizes and reads the Taiyo Yuden DVD-R that I have (already recorded). Unfortunately I don't have any TY blanks to try and burn.
The best quality media I have available is Verbatim 16X DVD+R (MMC004) which is not recognized.
I noticed from reading the docs for Omnipatcher, that the drive has a "media learning" feature, whereby it stores data from previous burns to help improve performance. It stated that sometimes a bad burn might upset the calibration. This sounds like what happened to me. I was trying to burn a CD-R which went wrong somehow, and after that these problems reading DVD-/+ R started.
Can anyone shed any more light on this aspect, and if it is likely to be a cause? If I keep burning some more CD-R will things improve? If I get hold of some TY and burn them will it gradualy improve by this media learnig method, and re-calibrate my drives laser?
Unfortunately I didn't have a backup of the EEPROM from before the problems started. Is there anyway of getting hold of a "standard" EEPROM that I could try using. Is this safe. (I know each one is supposed to be individual for that particular drive since it is calibrated to each individual laser).