These are very simple to use wav files that replace some of the existing ones for Casaer3. All you have to do is unzip all the wav files into your Caesar3\wavs folder. I suggest saving the original wav files first in another folder, but if you do not you can always access the original wavs from the Casaer3 CD; after awhile you will probably get annoyed with the new sounds and want the old ones back! I hope you enjoy these new sounds, if you have any questions or comments feel free to e-mail me: bieber@topsurf.com