Perfect tunes

Hi db have program for getting rid of duplicating tracks you can down load the unregistered  version, It  moved my music onto windows media player I have a large collection took about 3 hours to process them, Then made them into single tracks perfect so I thought  it even told me and showed me on paper but I played them back they had gone up to trebles,As any body else used this program I know being unregistered  it is only a demo try before you buy any comments regards.