I've been backing up years now with no problem.. I have 2 burners a nec 16 dual format and I recently bought a lg 20x lightscribe (as my slave). I always burn my movies at 4x last week for no reason at all, all my burners have stopped burning at 4x and up. the will only burn at 1x-2.4x. I have wiped my drive, uninstalled, reinatalled nero7. and after one successful burn, it goes back to the same problem. i am running and amd 64 athon 2800+ 1 gb of ram. and again .. i have never had a problem with nero until now. also.. when i try to burn an dvd image project (straight thru nero 7) i am having the same problem... i did try it iwt nero 8 and it did not work. i thinks it'e s the drives causing this.. is there amyone out there who knows how to handle this problem?