Background/more information: See https://bugzilla.redhat.com/show_bug.cgi?id=538551 udisks doesn't recognise CD-ROMs that have both ISO-9660 and HFS filesystems (with an MBR). Certain software products are distributed in this manner. I am told that this is because the kernel does not partition CD-ROM devices.
Any further motion on this?
Not sure why it was even filed in the kernel bugzilla. It's a Red Hat userspace matter