I recently purchased the sony dru-830a dual layer burner and installed it..and it works fine.When I try to copy a dual layer disk that I assembled at a friends house I put it in the single layer drive and start up clone dvd with any dvd...set the setting as custom at 8200mb and also have tried the dvd +/- DL setting then started the copy process...it reads fine and when it goes to copy on the dual layer disk it justs sits there are the setting up/erasing part and freezes wont move...if I put in a reg dvd 4.7gb and use the custom setting at 4200mb it will compress and burn just fine...It does not work at all on the dual layer disks..Am I doing something wrong or does clone dvd not work with dual layer disks???any suggestions Thanks