I have DVDBackup and DVD2onex. I was wondering if anyone has been able to make a copy of a dvd to a dual layer disk, and have it playback on a home dvd player? I have the Denon 3910, which is only about a year old. In the manual it says that it will work with DVD-R, but I think that all dual layer media is DVD+R. So this would lead me to believe that they will not work?