[shimmering]

I wonder whether this could be useful to some.

ETA: But I wonder whether the replies could be more useful.

I've had a bit of a problem uploading an epub file to nook and kobo. I think it's now solved, in a way that possibly seems obvious in retrospect.

The problem was that after uploading, the TOC (by which I mean the non-html and ever-present TOC coded by an ncx file) expanded to include various undesirable entries that were not present in the TOC of the originally uploaded epub file. Oh dear.

My epub files are html-coded, command-line-zipped. They include one xhtml file for each of the chapters (all included in the TOC), plus (and herein the source of the issue) various further xhtml files that form part of the book but are not required in the TOC (e.g. things like the cover image, the title page, copyright, etc.). Well all these unincluded xhtml files, uploading to Both nook and kobo, spontaneously and disasterously appeared in an expanded TOC. Their TOC entries were pieces of code.

Well the only thing I found that worked to get around this and use the original TOC was to: NOT open the epub file in the previewer that presents itself immediately after uploading. That for both nook and kobo. If I opened the uploaded epub in the dashboard's previewer, then the extra entries appeared and could not be got rid (despite an apparent option to do so in a TOC editing tool for the nook case) of without reuploading the file.

So I think (for the moment) that that's a solved issue for me for the moment at least. Although it's a bit of a workaround and has the obvious issue that previewing is made more difficult if using the previewer wrecks the file. But there we are.

Hope this helps...
Or maybe you already knew. Or am I wrong?