I have no problems with you modifying/fixing the code (and please do). In fact the license at the top of the script gives you that right (just make a brief note in the comments with the date about your changes). I'll try to get you a fixed version before the weekend. There are a number of things I need to fix (the file name thing, retry with larger data chunk and probably some others). Also, I need to move my support classes inside the body of my App class and eliminate some other global pollution.