My problem is that I burn videos in Dvd format that I have converted from avi to dvd. been doing this for over a year and a half. My burner is 16 speed. The Dvd blank disc I use are dvd-r 16X. I use Nero 22.214.171.124. I have always burnt them at 16 speed with no trouble. Now all of a sudden the same brand disc (its not the disc) will sometimes burn at 16, sometimes at 12 and sometimes at 4 speed. I used to always get a constant 16 speed. Do reckon something is unchecked in my Nero burner somewhere? I have checked everything. Any and all help would be deeply appreciated. many thanks and God Bless.