problem with playlists, filename and songtitle

Does XMMS have the concept that the title of a song can be different from
its file name? Particularly for non-mp3 files?

What I am seeing (in a build from the CVS sources) is this: I can add
a few .wav files to the play list and I can even set the song titles
via the xmmsctrl.c socket (I added an new control socket command). But
when the song starts to play the song title is overwritten by the file
name.

Is this the expected behavior for XMMS?

In my music database I store raw .wav files. The files have names like
"track01.wav". What I want is for xmms to be able to have a playlist
where the song info (title, artist, etc) is independant of the source
of the music.

Comments?

-Ram