Only supports mp3 for now, but hopefully more formats will come in the future.

It does feature single file and folder selection. A nice, simple gui. And ease of use.
Enjoy and check back for updates.
Also let me know of any bugs.
The included file contains the bas file and a converted bat-to-exe file.
If you want the already compiled installer, find it here:
http://valorsolo.com/projects/download.php?id=7