media handling settings

[Narcis Garcia <informatica actiu net>]

Hello, I want to customize the whole "Removable media" section in
gnome-control-center's Details, only using gsettings or other command
line tools.

I've tried to do this to set that VLC media player plays automatically
an audio CD when is inserted:
$ xdg-mime default vlc.desktop x-content/audio-cdda
$ gsettings set org.gnome.desktop.media-handling
autorun-x-content-start-app "['x-content/audio-cdda']"

but no luck.
Do I need to do something different?

Thanks.