I see that I can boot from my Knoppix CD and by hitting F3, add the proper selection, where I can boot an ISO file.

My questions:
Can the ISO file be on a FAT32 filesystem?
Can the ISO file be on a NTFS filesystem?
Can the ISO file be on a EXT3 filesystem?
Can the ISO file be on a EXT4 filesystem?
Can the ISO file be on a Reiser filesystem?

Can the ISO file be on a CD filesystem on my 2nd DVD drive?

Thanks in advance