Hi;What's up with this plextor px-716A ,when burning a dvd say 4.5 gig on memorex 16x dvd +Rs starts off slow then starts to pick up speed to around 8,9,maybe 10x lights flashing fast,then all of a sudden drops to 3.5x speed for the rest of the burn ,still 3/4 left,and stays at that speed.Do I have some settings wrong somewhere,Dma is enabled,No errors on burning,just speed kinda sucks,Is there a way to fix this? I'm dissapointed in that,Maybe I have something set wrong?Any help would be great.Thanks