Too bad, under Linux Ubuntu this software doesn't recognize any .mp3 files. There is a version 2.3.5 out but only for other OS's :-(
So it's some more days/or weeks until we can use this DJ mixing program. (I am checking the forum at least twice a week - http://www.ultramixer.com/forum.html)
If you should have anything better, please let me know.
All the best,