After first using DVD Decrypter in the File mode to create a video image file of a movie I wanted to backup and then usuing the Folder2iso program that was the subject of a recent Afterdawn article to create an ISO file (per the directions in that article), and after DVD Decrypter seemed to work very well when it recognized the ISO file created by Folder2iso and burned a DVD using that ISO video image file, I was surprised to see that when I tried to play the newly burned DVD, the new DVD was "invisible" to the player (Power DVD). The player program states that there is no DVD disk in the DVD drive when in fact it is there. What did I do wrong? Do I have to do anything (e.g, format the DVD disk) before burning the ISO file created by Folder2iso? Thank you.