Mac software for editing .iso images?

All --

Call me blind, but I have been searching Google for a fair amount of time and cannot come up with a single software title for the Mac that allows .iso image editing. (Editing = the ability to open and add/remove files from the iso, and then re-burn it.) Windows users have programs like MagicISO ( http://www.magiciso.com/) but there doesn't seem to be a Mac equivalent.

Can anyone offer a suggestion?

Now, in many forums contributors have suggested using 'hdiutil' from the terminal, like 'hdiutil mount -readwrite image.iso' but it doesn't work. To quote the man page: "+-readwrite :: *attempt to override* the DiskImages framework's decision to attach a particular image read-only.+ "

Note the bold text. It is only an attempt, not a guarantee.

Anyway, I can't be the first person to try this. Any thoughts?

Bones