Nokia music player error ? File is Corrupt, Operation Cancelled ?

Connect to PC in mass storage mode, check show hidden files in Windows explorer. Open Private folder in mass memory and delete the contents of these folders, don't delete the folders:

10281e17 folder - delete [101ffc31]mpxv2_2 ,  [101ffc31]pcv6_1, and [102830AB]thumbnail_v2

101ffca9 folder - delete harvesterdbv9_2

(That's how they appear on my N97 anyway).

When you open music player it'll rebuild database, you may need to refresh.