I am using Samsung DVD writer from past 2 years, it was working fine till one month back but from few days i have seen that, when i was starting writing it is taking nearly 30 min to burn a DVD, when i have check again with new DVD then it start's burning it's show's 16X(22,800kbps) but after few min i see that he has come to 3x some time 5x some time 10x like that, i did not understand where the problem is, is any one can help me in this,

Thanks in Advance