Minim not understanding m3u files

[Charles7]

Not sure I grasp the issue, but my setup (on a Windows PC) might suggest a workaround for you. I too use BubbleUPnP on an Android tablet.

My Minimserver contentDir property has only several lines of the form
c:\stuff\somefolder
somefolder may have subfolders. I don't need to list them separately. The subfolders have .flac files and .mp3 files and such. I don't need .m3u envelopes. Minimserver scans everything, and BubbleUPnP sees the .flac and .mp3 items (in its folder view).

I only use one or two .m3u8 files. The text of each such file has several entries in .m3u format for actual streams of Internet radio, etc. BubbleUPnP sees these files (under playlists), and I can tap and launch a stream.

I don't know QNAP. If you try this workaround, QNAP might require that you use BubbleUPnP somewhat differently than you are used to in order to do a search.