Is there a command to view Primary Volume Descriptor in iso images?
The drutil command is the OS X utility that's similar to isoinfo. The dumpiso verb inspects and interprets ISO-9660 and Joliet structures. The format of the command is:

drutil dumpiso &lt;device&gt; &lt;block&gt; [format]


where the arguments are (see man drutil for details):


device   Disk node, e.g. /dev/disk1.

block    Block number to dump.

format   If format is not specified dumpiso will attempt to guess. 
         If present, this argument should be one of the following:
         None, Boot, BootCat, PVD, SVD, VPD, VDST, MPath, LPath,
         Dir, or HFSPlusVH.


The drutil command allows a shortcut that avoids the need to attach, mount or detach an ISO image file. The command is:

drutil dumpiso &lt;image&gt; &lt;block&gt;


where &lt;image&gt; is the name of an ISO image file. For example, drutil dumpiso image.iso 16 displays block 16 from an image file named image.iso and guesses the block's format.