Add the following lines to your /etc/fstab file:
/dev/sda4 /mnt/dos msdos noauto,user 0 0
From now on, you’ll be able to mount the DOS-formatted Zip disks with the command mount /mnt/dos, and you be able to mount Linux-formatted Zip disks with the command mount /mnt/zip.
If you have SCSI hard disks in your system, you’ll have to change sda to sdb or sdc in the example above.