i burned OD brand media(ritek) @ 12x and it took 12 minutes!! i have no problems with 8x burns. i've burned verbs and TY's @ 12 and 16 with no problems. i'm using a benq 1650
had 3 burns with the same media @12x on my 1650 with no problems after i switched firmware....i had BCHC and switched to BCFC