i want to burn a dvd(hard drive-DL) to a dvd(Burning-4.5gb) when i press start everything goes fine... but when it gets to 50% he says it is done. but when i check it's only 2gb large instead of 4gb.... any help pls? i only have this problem with 1 dvd and i really want to burn it.. i use D-tools to mount and then burn...