Still does not recognize all allegedly supported formats:

mpd (MPD: Music Player Daemon) 0.16~git

...

Supported decoders:

[mad] mp3 mp2 [vorbis] ogg oga [oggflac] ogg oga [flac] flac [sndfile] wav aiff aif au snd paf iff svx sf voc w64 pvf xi htk caf sd2 [faad] aac [mp4] m4a mp4 [wavpack] wv [mikmod] amf dsm far gdm imf it med mod mtm s3m stm stx ult uni xm [ffmpeg] 16sv 3g2 3gp 4xm 8svx aa3 aac ac3 afc aif aifc aiff al alaw amr anim apc ape asf atrac au aud avi avm2 avs bap bfi c93 cak cin cmv cpk daud dct divx dts dv dvd dxa eac3 film flac flc fli fll flx flv g726 gsm gxf iss m1v m2v m2t m2ts m4a m4v mad mj2 mjpeg mjpg mka mkv mlp mm mmf mov mp+ mp1 mp2 mp3 mp4 mpc mpeg mpg mpga mpp mpu mve mvi mxf nc nsv nut nuv oga ogm ogv ogx oma ogg omg psp pva qcp qt r3d ra ram rl2 rm rmvb roq rpl rvc shn smk snd sol son spx str swf tgi tgq tgv thp ts tsp tta xa xvid uv uv2 vb vid vob voc vp6 vmd wav wma wmv wsaud wsvga wv wve

However, no .shn files end up in the database. Is this a mime type problem?