FastDMG

FastDMG is a utility to mount .dmg and other disk images quickly, without any unneeded nonsense. It is a fast and reliable replacement for Apple's DiskImageMounter.

• Doesn't waste your precious time verifying disk images
• Auto-accepts annoying end user license agreements
• Runs in the background (doesn't show up in the Dock)
• Displays no windows or menus and stays out of your way
• Multithreaded, can concurrently mount several images
• Disk image document icons continue to look the same
• Handles all disk image types supported by DiskImageMounter (dmg, iso, smi, etc.)