Hi.! I am trying to play a DVD video file on my windows 7 windows media player. Since it is a DVD format, the movie is crystal clear (hv tested it on my laptop [vista]). When i play it in windows 7, the movie shows a lot of grains and is not at all clear.! I've even tried a couple of codecs, tried k-lite mega pack, Media player classic...btu in vain. Kindly help me out plz. Thanks in advance.