You can skip disk image verification (checksum) to speed up the mounting of disk on Mac OS X (though it is not recommended).
To disable this feature:
- Open a terminal and type the following command:
-
% defaults write com.apple.frameworks.diskimages skip-verify YES
To enable this feature again:
- Open a terminal and type the following command:
-
% defaults write com.apple.frameworks.diskimages skip-verify NO