diff --git a/src/data/beos_mime/audio/x-mdx b/src/data/beos_mime/audio/x-mdx
new file mode 100644
index 0000000000..e05c951e86
--- /dev/null
+++ b/src/data/beos_mime/audio/x-mdx
@@ -0,0 +1,16 @@
+
+resource(0, "BEOS:TYPE") #'MIMS' "application/x-vnd.Be-meta-mime";
+
+resource(1, "META:TYPE") "audio/x-mdx";
+
+resource(2, "META:S:DESC") #'MSDC' "MDX Sound File";
+
+resource(3, "META:L:DESC") #'MLDC' "SHARP X68000 MDX (Music Data for mXdrv) Sound File";
+
+resource(4, "META:PREF_APP") #'MSIG' "application/x-vnd.Haiku-MediaPlayer";
+
+resource(5, "META:EXTENS") message(234) {
+	"extensions" = "mdx",
+	"type" = "audio/x-mdx"
+};
+