Thanks for the reply. From what you write, and if I understand correctly, I must assume that Calibre does NOT store the edited meta tags in an xml file in the media file. In this case it are all CBR files. This means that other Comic Readers won't see the changes at all.
If indeed Calibre is storing the new meta tags in it's own database, only for internal use, then there is no point in updating/correcting the meta data this way. unless I am totally misunderstanding the way this works.
the general idea was to correct the meta data (in case the maker from the CBR files was sloppy or incorrect). I have done this before with editing meta data in an pdf file of a non-DMR protected file. So, if I upload a new book in Calibre and see that the publisher, or series are missing, I want to edit this to correct if possible. Next step is to let FBreader connect to the network database, push the download button in FBreader, and see the same meta tags there once the document is downloaded to the device.
Again, if editing the meta tags in Calibre is not vissible for other readers, then what is the point? I have spend 2 days on researching and verifying tags. Glad I had all the correct information, it now seems that the device ebook readers don't see any of these changes.
From what I understand a CBR has no meta tags by definition. (
https://wiki.mobileread.com/wiki/CBR_and_CBZ). Normally a CBR or CBZ file does not have metadata. There are no text files and the images are viewed in alphabetical order. While there is no standard for metadata there are several methods to store comic book metadata in comic book archives.
wouldn't it be more logical for Calibre to store the edited meta tags in xml? any other suggestons on how I could let other readers use new data entered in calibre?