Hi,this inquiry is about my apex ad1110 dvd player. what it is doing is i can hear sound,says no disc, loading without playing,unknown disc, all of the cables appear to be good i even changed cablesthe only thing it could be is we were cutting wood for house walls and there might be dust in side i bought a cleaner but still didn't work. the next thing is to buy a dvd with a upconverter for about $45.00 dollars any thoughts will be appreaciated,thank,s whisky20 about $45.00