you have a lite-on burner?
I have a friend that can't use TDK in his, it won't see them.... and worse yet he got some pricy Sony DVD's and could burn them... it said it burned them ok, but they won't work in anything, DVD player, PS2, other PC drives... and get this... after the first data check right after burning... they won't read in the burner anymore...
PS3 Slim 320GB
PS2 v11 exploit w/300GB Maxtor
PS2 v10 exploit w/80GB Samsung - Network Games
PS2 v10 exploit w/60GB Samsung - Network Games
PSP 1001 3.52M33 w/10GB total storage
NDS DSReal 4GB