I have here mediatomb mediatomb-0.12.1-37.el6.20120403gitb66dc1.i686 running on RHEL-6 (packages at https://copr.fedoraproject.org/coprs/mcepl/mediatomb-el6/ ). With find . -type f|wc -l
I get 5750 files. I can see all those files even in the web UI, but when I browse the DLNA server with either https://play.google.com/store/apps/details?id=com.panasonic.avc.diga.wwmusicstreaming or https://f-droid.org/repository/browse/?fdfilter=dlna&fdid=de.yaacc there are many many files or whole genres or artists I don't see at all. Is there some limit by which the server may limit the number of provided metadata?