To mount the floppy, try:

Code:
mount /dev/fd0 /floppy
Was the cdrom you tried to mount a data cd? Like was just said, you don't need to mount audio cds, and will get that error message if you try, because the fstab is expecting an ISO9660 format. If it was data you may just need to try something else, like

Code:
mount /dev/scd0 /cdrom