I am new to computing and purchased a second hand computer. Due to problems I had to reformat the hard drive and did not have the driver disc for my DVD player. When I installed XP Home, it loaded its own drivers. I have just bought the latest copy of Computer Buyer to watch the DVD of the Vietnam War but the video does not play and Media player 9 suggests that the files are videos but cannot help further. A friend say that I need an MPEG2 codec but cannot help further. The DVD player is identified by Windows as an MT1316B BDV212B and the file extensions which I am trying to play are .BUP, .IFO and .VOB. Can anyone supply any ideas? Thankyou.