taglib error

[Veit Hailperin]

Hi
I want to use taglib in one of my programs, but I always get this error:

TagLib: Could not open file file.mp3

I checked permission on the file, which is rxwrxwrxw. The error comes 
from this line:

TagLib::FileRef f(pDir->d_name);

Anyone any suggestions? Because the error from taglib isn't very helpful 
  to me.

Looking forward to some answers.
Veit