Creating a Disk Image, DMG, file is so simple.

  1. 1)Create a folder and place the contents that you want to distribute into that folder.

  2. 2)Run the Disk Utility application. (Found in the Utilities Folder within the Application folder of the hard drive)

  3. 3)Click on File --> New --> Disk Image From Folder

  4. 4)Select the folder

  5. 5)Give the image a name, location and then click Save

  6. 6)You are done

For Windows users, looking to make installers, your tutorial is:

Creating Cusitom Installers For Your Programs Using Inno Setup

Video Tutorial: Creating a dmg (Disk Image) For Distributing Program and Files - For Mac X - Tutorial