hey, i joined this forum cuz i just got a mini disk - mzn420d after seeing my friends who loved theirs, sadly the first 1.5 days of owning my minidisk were horrid as i had every possible problem with sonic stage...i discovered that upgrading to the newest version of sonic stage, avaliable on the microsoft website at http://support.microsoft.com/defult.aspx?s...b;EN-US;Q321882 and then reregistering jet and mcad (i think thats what they were called) worked the best...good luck to all of you who have similiar issues about not finding databases and corrupt files etc its super frusterating.... thanks for everyone who posted here and eventually lead me to a solution!