Helping someone out after a phishing attack — quarantining her hard drive, imaging it, and then restoring the personal details to a new larger drive with a clean install of Windows — I was trying to figure out how to mount the disk image I created. Some googling and head scratching. Hmm, I wonder if
hdiutil attach [image file name]
would work or at least give me an informative error message? It worked. Silently and as expected(?). Lots of pages about various NTFS drivers and arcane apps, but for whatever reason, OS X Leopard was able to manage it.