Not sure where I need to post this problem, so move if needed. I can make copies of my orginal DVD's with no problem, but when I try to make a copy of the copy it won't read the entire disk. I have used CloneDvd, and Nero with the same results. These movies play in my Apex player, but have tried in 4 different DVD drives on two different computers and many ,not all, won't read. I have an Optorite DD0201 burner, and have tried Memorex 4x +r and TDK 4x +r media. I have the 2.3 firmware, can't get the 2.5 upgrade to work, windows XP, 2gig P4, 512 Ram system. Thanks for any help.