I recently purchased a Sony DRU-710a DL burner along with Verbatim +R DL media. Since my kids love watching Shrek over and over and have a tendancy to be a little rough with the DVD movies, I decided to make backup copies. I start with DVD-Cloner II and make copies of my original DVD's to my local hard drive, then I use Nero Burning ROM 6.6 to take the image on the hard drive and create a new DVD with the Verbatim media. Everything seems to work fine and it burns successfully, but when it comes to playing back it locks up and freezes and in some cases cannot read the disk. This is the case even using the same dvd drive that I'm burning with. I've gone through half dozen disks and can't afford to keep this up. What am I doing wrong...any help would be greatly appreciated.