(Following paragraphs copied from bug 116236 verbatim :-)
As mentioned in
http://developer.gnome.org/doc/tutorials/gnome-i18n/developer.html#plurals,
the common way of handling plurals is broken for many locales. A way to
solve this is by using ngettext instead, as mentioned in that document.

A simple code example of code using ngettext:

  g_printf (ngettext ("Found %d file.", "Found %d files.", nbr_of_files),
nbr_of_files);



These are the relevant messages.

#: lib/widgets/rb-song-info.c:1101
#, c-format
msgid " (%d channels)"

#: library/rb-library.c:1643
#, c-format
msgid "<b>%.1f</b> days (%ld songs)"

#: library/rb-library.c:1646
#, c-format
msgid "<b>%ld</b> hours and <b>%ld</b> minutes (%ld songs)"

#: sources/rb-audiocd-source.c:1231
#, c-format
msgid "%d songs, %d:%02d:%02d total time"

#: sources/rb-iradio-source.c:486
#, c-format
msgid "<b>%d</b> total stations in <b>%d</b> distinct genres"