I put a sinle music file (short ones) on several CDs. MediaPlayer seems to
have finalized the CDs, as all indications are that I now full discs, when
each should have plenty of room.

I went into each and was able to delete the music file. This left a track,
though.

Even though only the track indicator shows up, MediaPlayer still says disc
is full when I try to put another music file on it.

What gives?