Decanting wine into Ubuntu

Hello to All

I give thanks for the new build 2013.2.26 it's really real.
My problem has been that I built a collection of shares on an older wine version last year that I could not utilise as mp3 nor convert. After comming back to Qt I have renewed hope of doing so
I read elsewhere on this forum about renaming files but I have drawn a blank as to how in this instance. The wine explorer shows completed files but appears limited as right clicking to view its properties does not work.. please advise.

Regards