Quote:
Originally Posted by cybmole
is a file called meta.inf a mandatory component, but one which ADE & calibre viewer can live without ?
|
It's not a file, it's a directory (folder), and it's "META-INF" (case-sensitive, and with a hyphen). It's mandatory, because it must contain a file named "container.xml", which defines where the main OPF file is located. It is this OPF file that defines all the other ePub contents and structure. Maybe ADE and calibre have some way of finding the OPF file on their own, but without "META-INF" the ePub is definitely invalid.