1-4x-R vs 1-8x-r discs



i have a sony dru-510a dvd writer and when burning with tdk 1-4x -R discs everything works ok, but when i tried to burn with tdk 1-8x -R i always get errors after the drive initilises. can anyone help me with this problem?


What firmware are you using?
What software and exact version number are you using?
What is the MID of the 8X disc?