I found this out a while ago when looking for info on reading .DMG files on Windows or Linux boxes. Long story short, its a very painful process and not worth the time. Then I found this tip. It creates ISO images from DMG images, so they can be burned elsewhere.

To convert the file to an ISO image, type the following command at your terminal window:

hdiutil convert /path/to/filename.dmg -format UDTO -o /path/to/savefile.iso


Replace /path/to/filename.dmg with the path and name of the existing .DMG file, and replace /path/to/savefile.iso with the desired path and name for the converted image.

This then creates an ISO image burnable in Nero on Windows, or pretty much anything on Windows that will burn ISOs and same with Linux. Conversion can be slow, but it works.