HP 9114B Operator's Manual page 26

What is the Life Expectancy ofa Flexible Disc?
The read write heads uf the disc drive touch the disc. As a result,
the flexible disc media does wear. TheMedia Monitor indication
helps assurereliable operation
Media Monitor
Througha feature called Media Monto, vour disc drive
automatically monitors thecumulative use of each individual disc
When the usage of a disc is approaching a level al which thereis a
risk of loss of data through normaldisc wear, the disc access light
an the front pancl blinks and a clicking sound 1s heard. Once this
pomt has been reachedinthe fife span of adisc, read and write
commands are still performedby the computer However, ater a
command has been pertormed. the disc drive immediately resumes
the warning indication
Whenthe Media Monitor warning occurs, immediately copy your
disc. If you continue to use this disc, thedisc drive will eventually
automatically write protect the disc. After that time, vou will only
beable to read data fromthedisc or copy the disc
Write Protect Error on Initialization
A mator speed check is performed when a disc is inserted into the
drive. If the motorspeed is on either side of the tolerance allowed,
a Write Protect Error is generated andthe disc cannotbe initialized
ar used. If your drive is operating properly, this indicates a
defective disc. Discard the disc