Hi folks. Here's the problem. On machine A I mount the cdrom. (fstab set to auto as file system type) On machine B I mount the shared cdrom (fstab set to nfs as file system type) I copy some files across the network from the shared cdrom on machine A to machine B. No problem. I unmount the cdrom on machine B. I go back to machine A to unmount it there and get "device busy". Hmmmmmmm?????? Perhaps I'm sharing the cdrom incorrectly? All ideas welcome. Yes, Ive read the manual. Bye for now.