Thanks, klaus2008. This helps a lot.

I still am confused over man mkisofs and the die.net version of mkisofs(8). For example, the B option seems to be quite different. Is there really much hazard for the less experienced Knoppix user, such as myself, to disregard many-if not all of these options, and just do something 'simple' like the following ?
Code:
 sudo mkisofs -R -U KNOPPIX-DATA | create_compressed_fs -B 131072 -m - - > /mnt-system/KNOPPIX/KNOPPIX2
On the excludes, will wild-card specs work? I've found these handy to lighten things up. Such as the excludes in tar:
Code:
 --exclude=*/Cache/* --exclude=*/cache/*