[rhino79]

This isn't the typical question about metadata, meaning I understand that Calibre doesn't alter the metadata inside the book file unless you do a conversion, use Polish or use Modify Epub plugin.

My issue is this... I don't want any "comments" in my metadata, so I clear them in the metadata editor window, then I use Polish to update the actual book file.

However, if I open the book in Sigil, I still see text in the dc:description tag. Why is this still there? Is the Calibre "comments" data not the same as the dc:description entry?

The same thing happens with Modify Epub plugin. I clear the comments and update the metadata, yet the dc:description data remains.

Am I missing something here?