[calvin-c]

On my reader I've noticed several strange tags, such as Charlie Chan novels being listed as part of the 'Biggers' series as well as of the Charlie Chan series which I entered. In the 'regular' metadata there's no sign of this but when I use Calibre reader & view the metadata there it shows up-and I can't get rid of it except accidentally. Editing the regular metadata doesn't overwrite this 'embedded' metadata but sometimes it just disappears, replaced by the regular metadata. I'm sure there's something I'm doing that causes that but so far I haven't figured out what-but what I'd really like to know is where I can find that metadata to either change or get rid of it. I've spent quite a bit of time in Calibre assigning my own tags & now on my reader they're all mixed up with tags that seem to appear automatically. At first I thought it was my reader (Moon Reader Pro) doing it but now that I've found it in the Calibre reader I figure it must be from wherever I downloaded these books. (Guttenberg, I think, but I don't track the source.) So, any idea where this metadata is stored & how I can edit it? I can upload a book with it if you'd like. Actually if you need that it'd be more useful for me to upload 2 books-one with the strange metadata & the other where the metadata shows exactly as I've entered it in Calibre. Let me know if you need that. Thanks.