seasoft DMG to ISO is a fast,user friendly and efficient converter for DMG to ISO

Key Feature
-Easier to use, follow 3 steps to finish the conversion
-Supports batch conversion
-Supports both ISO 9660 and Joliet
-Lion compatibility
-Supports full screen mode on lion
-Supports new scrollbars on lion

http://itunes.apple.com/us/app/dmg-to-iso/id456906336?mt=12