Maybe he was referring to the common "click of death" that
is well known for Zip diskettes.
http://en.wikipedia.org/wiki/Click_of_death
If this user doesn't have alternate backup media (i.e.,
backup media of the Zip backup media), one day it'll go
clickey-clickey-dead.
I don't remember if the result was you had to replace the
Zip drive and you could continue using the old Zip disks
or if the Zip diskettes were
also out of alignment so they wouldn't read in a new Zip
drive. Is the
sectoring on a Zip diskette done magnetically? If so, a
misaligned head in a defective Zip drive could result in
misaligned data on the Zip diskette which means that old
Zip diskette might not be readable in a new Zip drive.
Well, since the users is only using the Zip diskettes for
their daily backups during the week, I suppose all they
would lose is a week's
worth of data. However, in business, losing that much
data could be
catastrophic. Large or professional companies don't use
Zip diskettes for reliable backup storage so this client
is some 1-person SOHO setup.
I also bet they have yet to verify those backups (on
whatever media
they use) by actually restoring the backups to a partition
on a test host (or another unused or test partition on
their production host). Doing backups sounds great until
the day you actually to do a restore
and find out you cannot read from the backup media. The
"verify" option in backup programs does NOT write any data
from the backup media to a hard disk so you won't know
using that option if your backup media is really usable.