Remove "." and change "disk" to "disc".
So it matches the string in https://gitlab.gnome.org/GNOME/brasero/-/blob/master/libbrasero-burn/brasero-sum-dialog.c#L692
So it matches the string in https://gitlab.gnome.org/GNOME/brasero/-/blob/master/libbrasero-burn/brasero-sum-dialog.c#L692