Why?

In Suse 10.0 after complete new installation, I put in an audio cd, Tchaikovsky. Open it Kscd, it does not get the artist etc. only Unknown Artist, same with Konqueror audiocd:/. However, if I open it in CD Ripper (sound Juicer), it shows album title, artist, etc. If I put in a Willie Nelson cd, all three show the album and artist correctly. An explanation would be greatly appreciated. Art