Originally Posted by Jay22
when I ran the epub it produced through epubcheck it came back with many errors (Although for the most part it looks ok in Calibre reader and Adobe Digital Editions). Thanks again.
The errors that result from calibre are due to epubcheck not properly understanding the epub standard. Other errors are due to problems in the input, garbage in garbage out.
If passing epubcheck is important to you run epub-fix
on your epub and most, if not all, of the errors calibre is responsible for will be corrected.