I have a sony dwu 18a, with 832s firmware (CG5G). My problem is that certain types of blank media arnt recognized at all. The media I am having problems with are TDK dvd-r (media code TT02 I think, I got one to burn by shutting down the computer with disk in drive and rebooting, was a terrible burn though) and OEM taiyo yudens dvd-r 4x. When I put one of these disks in my drive the drive makes a noise like the laser is moving up and down a hitting the disk. (it leaves visable marks on the blanks) After 15 or so seconds of this the drive makes a soft beeping noise untill it gives up.
Fixes I have tried, new aspi, lots of different firmwares old and new even back to stock, reset learnt media with eeprom tool, fresh OS install and unistalled all dvd related software and reinstaled.
OS Win2K pro
Is this a known problem or is my dvd drive playing up, BTW I am still getting acceptable burns with princos, Ritek G04's and 5's and tdk dvd+r 8x ricoh manufactured.
thanks for any ideas