I feel embarrassed now. Regardless, thank you for correcting my rather foolish mistake. Funny though, why does SonMapEd automatically attempt to treat it as Nemesis compression? If you select the first option, it auto-detects. Also when I tried to put this in the SonLVL ini... (One that I created for AIZ objects) it didn't draw the object. Is there something special I need to put in the .ini somewhere to dictate the compression format used?