"SettlersII_1_0.toast" is a direct disc image, without the CD-Audio soundtrack, the tracks of which have been compressed into MP3 format in the "audio" folder to save space.

"SettlersII_1_0[k].dsk" contains a patch for copy protection, a patched copy of the game, and leaves out the large intro movie.

"Version_1_1_Update.dsk" contains an updated game application; it does not appear to include documentation as to what has been changed from version 1.0.
