Cannot import media into banshee

I can get music from cds into banshee, but when i try to import media from my library in the music folder nothing happens except banshee reports its scanning for a couple of seconds but nothing is imported into banshee, any help much appreciated.
Colm:

Try doing Tools->Rescan Music Library.

Thanks, Initially rescan didn’t work, but then deleted files from music folder and copied them in again, then tried rescan and it worked.