Mount "Windows" part of hybrid ISO in OS X (10.9.5)
This worked for me to mount the Windows files in a hybrid CDROM. You should be able to do something similar for an ISO.


Run mount to list the currently mounted disks. Find the one for the disk you are interested in. E.g. /dev/disk2s1s2
Create a new directory under /Volumes, e.g. /Volumes/win
Mount to the new directory with sudo mount_cd9660 -er /dev/disk2s1 /Volumes/win. 9660 is the windows CD format, ISO 9660. Pay close attention to the device name, it is not the same as what is listed for mount. There is only one s, you truncate the extra s. So instead of /dev/disk2s1s2, you just use /dev/disk2s1.
Now when you go to /Volumes/win, it should have the Windows files, not the Mac files.