I have attempted to Back Up a DVD split to 2 discs with DVD Copy and the process runs smoothly....no errors or glitches. However, the discs will not play in ANY DVD player. I tried one compressed to a single disc and it willnot play in the Samsung or Hitachi stand alone, but will play in my HP Laptop. Using Plextor 708A and several types of DVD-R media. ANY THOUGHTS?