I have a Toshiba satellite which uses a SDR6112 which can burn dvd+-Rs supposedly. When I tried to burn something using drop and drag DVD burning program that came with the comp, it asked me to insert a disk, but I already have a blank DVD+R inside. I tried using another burning program, cheetah, but it also asks me to insert a disk. I've been all around the net searching for an answer on forums and stuff. Is there anyone who can help me?