mesb mesb - 2013-02-16

Hi.
Program is awesome.

Only small question^
How can i remove whitespaces?

By default it create tracknames like:
Artist Name - Track Name.mp3

With -D "%A_-_%T" i can get:
Artist Name_-_Track Name.mp3

I just don't like spaces, so all i want some key for getting this:
Artist_Name_-_Track_Name.mp3

Is there any option? :)

P.S. Is any plans for adding ogg or aac support?