I found the problem with my file. I guess it was not the zip file, since that is how Calibre works. It was one of my photo files that was corrupted the file. I went back and slowly rebuilt the file from scratch to see what was happening. Sooooo I want to thank you all for your help.
Now I want to try relearning HTML(5) and see if I can create a ePUB from scratch. Now all I have to do is figure out how to convert a HTML(5) file in Calibre.
Thanks again.
Jerry Kolnick