Hii. I have a LG DVD writer which I have bought around 3years ago. some months back it read CD. DVD.Dual layer DVD perfectly. But now a days it reads Dual layer DVD some times and sometimes not. But when it reads it copy datas with atleast 5MB/sec speed. Max is 12MB/sec. But most of the times now a days dual layer DVD is not detecting, it just spining and spining, but sometime it detects and reads data with 5-10MB/sec. What is the problem guys?? Can anyone help me please???