The latest version of YIFF is 2.8.0, I strongly suggest that you upgrade to this version: http://wolfpack.twu.net/YIFF/ (You do not need to recompile XShipWars 1.33g after ugprading YIFF) There are several updates to YIFF 2.8.0: The web page for YIFF has moved to http://wolfpack.twu.net/YIFF/ A bug in shelling back with the same Audio mode name has been fixed. Improved efficiency in sample rate deviancy approximation and Sound stream mixing (using 16 bit pointers for 16 bit sound objects).