Problems with Divx DVDs!

Ok I purchased the TDK IndiDVD 440N and love it but have a problem. It came with Easy CD & DVD creator and I installed that since my copy of Nero wouldn't see the DVD burner. I then burned 5 DVDs full of divx and checked the first movie on each disc just to make sure it worked and it did so I was set. Or so I thought. A few days later I put one of the discs in my Xbox and tried to play the last movie and it wouldn't launch. I decided to try another disc and sure enough the last divx movie would not play. I tried them in my computer and the same, the last divx movie on all discs would not play. Anyone have this problem? I now have a copy of Nero that works with my burner and tonight after work will try and see if it was just that crappy Easy CD & DVD Creator. Hopefully it was. If I experience the same thing with Nero what could be the problem?