There is no "ø" in the actual band name, the logo was made to look that way for the album.
Just as there is no "Λ" in the actual band name.
Yes, I know it's confusing when bands do that, but really, no where on either their homepage nor their Myspace is it written this way.
It's just simply Tragodia.
Please change your ID3 tags. Tragødia is a Gothic/Progressive Metal band from Brescia, Italy.