Hi.I have visited many times to read the threads and I see that there are very knowledgable persons who participate here.Today I finally registered. Now that I have bored you all to death,my question is my dvd player has stopped recognizing that there is a dvd in the unit pre-recorded or blank dvd-r.I can play cd's all day.On the Matrix Revolutions dvd I can play the behind the scenes dvd but not the actual movie disc(2 disc set).Any help will be greatly appreciated. Thanks