ENSONIQ EPS-16 PLUS Musician's Manual page 24

Section 1
Sometimes the EPS-16 PLUS Asks for the Operating System Disk
Occasionally, when sequencing, sampling, or performing certain other advanced
EPS-16 PLUS functions, you will be confronted with the following message:
When you see this message, it means that in order to complete the current
command or edit function the EPS-16 PLUS needs to load a pardon of the
Operating System from disk.
If the disk in the drive does not have the EPS-16 PLUS Operating System on it,
or if there is no disk in the drive you will see this message. Insert a disk
containing the Operating System into the drive and press the Enter button, and
you will be able to carry on with the function at hand.
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