@Riva3000 - you can have one instance of any file type in the folder, but you must add non-ebook files via the Add Books->Add files to selected books.
They will appear in list of formats in View and elsewhere, if selected they will open in the default program you have set up in the OS for the file type - eg Quicktime for MOV etc. If the author or book title is changed Calibre will do to these files the same as what it does to ebook format files, i.e. rename and move to the new book folder.
You can also put a link to external resources (including files) in Comments or similar columns - see attachment. JPEG & PNG images will be embedded in line, not sure about other image formats**. This method will allow you to have multiple instances of the same file type. It is how I handle having the same book in a different language - eg in Irene Nemerovski/The Dogs and the Wolves I might have a French edition is Here link that references that epub file elsewhere - usually in a folder named libraryname_Other Files. If I click the French edition is Here link it will open the epub in the OS designated program - which for me is the Calibre ebook-viewer program.
BR
**There's a minor glitch with 'very wide' embedded images, Kovid has informed me that it'll be fixed in V1.4.
|