File Extension DMG
File type: Disk Copy Disk Image File
Notes about the DMG file extension:
Errors in your registry are one of the common causes for incorrect file associations on your windows system. It is highly recommended that you
check your registry for file association errors (will also check for any other registry errors).
The DMG file type is primarily associated with 'Macintosh OS X' by Apple Inc.. On the Macintosh, these files are treated like a real disk. They can be created with Disk Copy, burnt to CD or mounted as a normal volume. If you have a .DMG file on a Windows PC it's likely you have a Macintosh file and you won't be able to use what is in it. Some sites distribute for the PC in an .EXE file and for the Mac in a .DMG file; make certain you have the version designed for your system. On a Windows PC the dmg2img program will convert a .DMG file to a standard (hfsplus) image disk file. On Windows, a fairly complete filesystem driver for HFS+ exists as a commercial software package called MacDrive. Note: You have to run the dmg2img program at a command prompt. DMGs can be password-protected and, if so, may not be mountable by some software. The DMG file also comes in different formats: HFS, HFS+, UFS, ProDOS, Linux, and Fat32 and so may also require special mounting software to account for the format. IsoBuster can interpret these files directly as can other programs such as UltraISO. The program TransMac, by Acute Systems, can both open and create DMG files on a PC.
