I am very new to Mac's and I don't fully understand how to install and uninstall .DMG files that I have downloaded. For example, I just downloaded a file called "cyberduck.dmg". Now after it completed the download it places the cyberduck.dmg file on the desktop along with the little white box named cyberduck. So I open up the application cyberduck (little white box) and click on the icon cyberduck.app The application launches and works good. So my questions is ...what do I do with the "cyberduck.dmg" file? can I put it in the trash? are .dmg files similiar to .exe files on Windows?