Has anyone upgraded their imgburn program only to find that it stops burning XGD3 games at 50% and says invalid write field, what could it be? I am using an iHas drive with C4 firmware. I would like to add that I am using Memorex discs and have never had a problem until I installed the latest imgburn. My settings are correct and I am using the supplied .dvd files to launch the program. The problem didnt start till i upgraded.