[QUOTE=d0p3y2k4;2669932]everything was fine until i updated the firmware
imgburn , nero , anydvd & clonedvd worked 100% with out any problems
I know what you’re saying, but things are not always what they seem to be, hence my earlier suggestions… but if you tried the drive in a different computer, and you get the same symptoms, then clearly the fault is with the drive itself …
Thankfully, something like this doesn’t happen often at all, but it seems that something must have happened during the firmware update …
You can try going back to the previous firmware version using the unlocked flasher method. You’ll have to flash your drive with the PL01 dump available on the forum using the unlocked flasher method, and then you can use the official PL05 flasher to upgrade your drive back to PL05. Maybe that would cure it. If it doesn’t, then your drive must have developed some sort of fault and you’ll have to RMA it.
You can find the necessary details in this thread: http://club.myce.com/f61/asus-bw-12b1st-any-thoughts-burner-323370/