Commodore Plus 4 - Page 192

attempt is made to write upon a
disk which has been formatted in
a non-compnlibie format. (A utility
routine is available to assist in —
converting from one format to
another.) This message may also „
appear after power up.
74 DRIVE NOT READY An attempt has been made to
access the Floppy Disk Drive
without any diskette present. —
183