Music in background

I have noticed this in FinalCut Pro X and in FotoMagico 5.
After selecting the desired audio back ground level and burned to DVD, the back ground music seems to be louder than desired.
Although, this would not solve the above perception,I would like Ver 5 to indicate the audio decibels as the audio level is changed.
https://www.youtube.com/watch?v=CCMGIJFCZHY