Ok, let me see if I can explain this so you'll understand whats happening. I've been using Nero 6.6 for ages and NEVER had this problem. I installed DVDFab on my system and all of a sudden Nerovision would only burn half the disc (it does not error out and shows it as complete). So, I uninstalled DVDFab and thought the problem went away until I went to play the DVD in my player, it would start playing normally and then half way thru what I was watching it would quit. I looked at the physical disc and noticed somthing very interesting, the first part of the disc looks like a normal burn the other part looks as if it burned shallower than the beginning of the disc. I know this is not a hardware problem because I burned a DVD ISO with Alcohol 120% and it burned perfectly fine (uniformly burned the entire DVD). Any ideas???