Problem when playing DVDRW

Ok guys this is my situation: I have downloaded a free movie that is in avi format and i used NeroVision express to make a simple menu with only one button that starts the movie. I have many DVD players and two of the expensive DVD players load the menu and movie perfectly with no problems. But the cheaper DVD players say “No disc” or “Unknown disc”. Am i right on saying they are doing this because they cannot read DVD+RW discs?? Ty guys please help.

Problem solved you may delete thread.