When building my collection Amarok only adds about 30% of the songs to the local collection.
If I then browse to a folder Amorak didn't get and add the song to a playlist i get something like this:
creedence clearwater revival-don't look now-woa by 07.
But when I copy the folder (containing the song) to, lets say, my desktop and then add it to a playlist it works great and the tags are read correctly.

Amarok is such a lovely player, what is wrong and how can i fix it?

My library contains about 20k songs, I'm using ubuntu 8.10 and Amorak 2.0.1.