Panasonic DVD-RV31K DVD Player, Black
Works fine for me
I've had this dvd player for about a year now and I had no problems with it.  Maybe some people recieved defective players and that's why the error message appears.  I've played movies on the player at least a thousand times and recieved no error messages at all.  Features like the black level cinema and the dialogue enhancer does very little for me but it's an extremely good player