Hi!
This is a great program and I use it all the time! I especially like the easy cover fix and the fact that you can edit all(?) metadata.
Recently, I get this error message a lot when I try to view the epub I just edited.
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Unable to read OPF file.
Line: 9 column 2 - unexpected ' '.
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I use Sigil as my epub viewer and I have the latest update of Epubmetadataeditor.
At the moment, I solve this problem by converting the epub to mobi (at 2epub.com) and back to epub. It works fine, but it's quite a hassle.
Is there an easier way to solve this?