How to open .dmg files
In a Macintosh system, the file extension .dmg is treated as a real disk and provides the user with an option to mount it just like a normal volume or to burn it on optical media. The distribution of the .dmg file extension in a PC environment sometimes takes the form of an EXE file format that will extract its contents to a form readily understood by the system. The Apple Disk Utility is geared more towards handling .dmg file extension types than acting as a compression utility. After double clicking on the file extension .dmg, the utility will mount it and allow the user to perform drag and drop functionalities.« Back to file extension dmg main information
