Function discid_sys::discid_get_mcn

pub unsafe extern "C" fn discid_get_mcn(d: *mut DiscId) -> *mut c_char

Return the Media Catalogue Number (MCN) for the disc.

This is essentially an EAN (= UPC with 0 prefix).

\since libdiscid 0.3.0

@param d a DiscId object created by discid_new() @return a string containing an Media Catalogue Number of the disk