I am going to build a dvd duplicator as described elsewhere in this forum (Wytron 399 controller, 9 Pioneer 111D burners, Lite On dvd rom, and WD Hard drive). I use Encore DVD for my authoring, and in the past have always burned dvds from an image file (.iso extension). Can I use an image file with the duplicator, or do I use an already-burned dvd as my source, or can I go either route? Thanks for any help on this.

Also, is it best to burn all the DVD's directly from the program (i.e. PPro or Encore) or does making a copy from the first burned copy work just as well.