i just converted a CD ("halber mensch" by einstürzende neubauten) into *.opus files with soundKonverter 2.0.5, then edited the metadata with easyTag 2.2.3, and finally rescanned my collection with amarok 2.8.0.

unfortunately, the files do not appear in my collection. when added to amarok's playlist via drag&drop, the files are played fine, but the metadata looks like a total mess, made up of parts from the file name and combined fields (e.g., the title field also contains the track number). it kinda fits the music. but it would be great if someone could try to replicate & solve this.