I have two burners one is lite-on sohw-1693s the other is the samsung sh-5202. when I copy a dvd from samsung to lite-on the copy has circle gaps and the copy freezes. when I copy in reverse its much better. When I copy from them indivually its all ok.is there an incompatibillity in the two drives or what? HELP!
could be following problems:
connect each drive to another IDE-channel and unsinstall packet writing software like Nero InCD.