Why will my friends xbox play a dvd+r burnt movie and my xbox says the disc is not a dvd or is scratched? Would a dvd-r work better? It was memorex dvd+r media, what can I do? Im also using dvd decryptor and DVD Shrink to make them. I tried a DVD+ that was burned with dvdxcopy xpress and it worked fine. What can i do? I want to be able to play the dvd decryptor movies. The xbox also has a mod chip if that matters, but i play the movie with the chip off.