when I play a dvd movie on my computer the system is reading and writing data to and from the hard drive at the same time. I don't think this is normal because I have two other computers and one laptop and none of them do this when I play a dvd movie. Does anybody out there know what is going on here? please help. I am knowledgable on hardware ,but I am just fair when it come to software. help , help I can be reached at [email protected] , but please no viruses , " okay guys"