Hi all hope you can help. I'm running Windows 7 Pro with PKZIP for Desktop. I've also got a Kobo Touch. I'm trying to make the simplest .epub eBook ever; just a cover and one page. (I'll tell you the reason later.)
I've followed jedisaber.com 's instructions to the letter, and
once I actually managed to get the book to upload into Calibre (great product by the way). But here's my problem. No matter what I do I can't get the ebook to verify here
http://www.threepress.org/document/epub-validate/ or get my eReader to show it at all. The verify website continually tells me that:
1.ERROR: mimetype.epub: length of first filename in archive must be 8, but was 9
2.ERROR: mimetype.epub: OPF file OEBPS\content.opf is missing
I think 1. is due to Windows and/or PKZIP (not command line version, GUI only), although I understand the need for mimetype first and uncompressed.
I think 2. is due to Windows 7 but can't prove it. I've tried many many permutations of the "OEBPS\content" file path, to no avail.
Please can anyone help?

Thanks in anticipation, Andy.