Banshee

Banshee is multimedia software able to play a range of audio and video formats

http://banshee-project.org/

Location Of Banshee Settings In Ubuntu
Your Banshee settings are located in you home folder in a hidden folder so first ensure you can see them, if using Nautilus open 'Edit' --> -'Preferences' --> 'View' (tab) and tick the checkbox next to 'Show hidden and backup files'. You can then navigate to:

/home/username/.gconf/apps/banshee-1