I am trying to make back up copies of DVD's to play in my JVC home theater system. I use dvd shrink, then F2ISO, then Dvd Decrypter to burn the ISO image. The JVC specs claim the player will read DVD-R, which is what I am using. However when I succesfully copy the movies and put them in the JVC player it says "NO PLAY". I have tried recording at 4X. I can take these same Dvd's and play them in my APEX player, what gives?