What does DMG stand for?

What does DMG mean?

DMG	Duel Masters Guide Miscellaneous » Science Fiction
DMG	Di- Methyl Glycine Academic & Science » Chemistry
DMG	Dark Magician Girl Miscellaneous » Names and Nicknames
DMG	Mac OS X disk image Computing » File Extensions
DMG	Macintosh OS X Disk Copy Disk Image File Computing » File Extensions
DMG	Department of Mines and Geology Academic & Science » Universities
DMG	Dungeon Masters Guide Community » Sports
DMG	Daily Mail Group Internet » Chat
DMG	California Desert Managers Group Business » Professional Organizations
DMG	Davidson Media Group Community » Media
DMG	Davidson Media Group Business » Firms
DMG	Development Management Group Business » General
DMG	Daily Mirror Group Business » Firms
DMG	Dot Matrix Graphics Computing » Hardware
DMG	Data Management Group Governmental » NASA
DMG	Dori Media Business » London Stock Exchange
DMG	Dragon Gold Mountain Ltd Business » ASX Symbols