Open media file in Nautilus

Hi,

In this Thread on ubuntuusers.de (http://forum.ubuntuusers.de/topic/quod-libet-als-standard-audioplayer-einrichte/) we grappled with the question how to open media files in ql in nautilus. Eventually, we found a solution: A bash script like this
#!/bin/sh
ps=$(ps x|grep -v "grep"|grep "usr/bin/quodlibet") # Ermittelt, ob quodlibet läuft
l=${#ps} # Die Länge von $ps
if [ $l -eq 0 ]; then
 quodlibet& # Startet quodlibet, falls es noch nicht läuft
 sleep 5
fi
quodlibet --play-file="$1"
as standard action in the "open with"-dialog.
It would be nice if you could add this (are some similar) solution into the Ubuntu-package.

Regards
 bauerj