Sub Folders

I was doing some work on some of my mp3's and normally I don't have sub folders,
however I have recently added a number of them under my primary mp3 folder due to the repetition
of some of the songs I have. I use WINAMP as
my primary playback and it has no problem reading into these folders. Anyway, I discovered that
MP3Tag does not read into subfolders as I wanted to edit a song that was showing up in WINAMP
but I found by using MP3TAG I couldn't find it until I had switched to that folder. I didn't realize
that MP3TAG didn't read sub folders.
Could this possibly be included in MP3TAG? Or am I the only one using subfolders?

Tools -> Options -> Directories -> Subdirectories