I have had nero6 reloaded since nov. Then two days ago it started playing up. Everytime it converts avi to dvd but when it comes to doing the actual burn it says that "the disk is not empty.Erase disk? Yes or No" If i select no it just aborts the burn, if i select yes it just repeats the message again and again. Why has this suddenly happened? I have used 5 different disks and the burn always ends the same way. If wasvworking fine before this.