[bob301]

Run on a vista-64 with calibre 6.29 then 6.32 same result. Occurs when using View function. Also fails when trying to convert it to Mobi.
I have a PDF version of the file that I previously loaded. I tried converted it to epub and was able to view it.

ERROR: Could not open ebook: (22, "invalid mode ('wb') or filename")

Traceback (most recent call last):
File "site-packages\calibre\gui2\viewer\main.py", line 60, in run
File "threading.py", line 477, in run
File "site-packages\calibre\ebooks\oeb\iterator.py", line 175, in __enter__
File "site-packages\calibre\customize\conversion.py", line 208, in __call__
File "site-packages\calibre\ebooks\epub\input.py", line 106, in convert
File "site-packages\calibre\utils\zipfile.py", line 1013, in extractall
File "site-packages\calibre\utils\zipfile.py", line 1001, in extract
File "site-packages\calibre\utils\zipfile.py", line 1041, in _extract_member
IOError: [Errno 22] invalid mode ('wb') or filename: 'c:\\users\\bob\\appdata\\local\\temp\\calibre_0.6 .32_0f8wmy_ebook_iter\\OEBPS\\images\\new dpr logo bw2"_fmt1.gif'