This operating system message occurs on some workstations that have both zip drives and CD-ROM drives. Typically, the message appears just before each video lesson file is about to play. Clicking Continue out of the message allows the video to play from the
The source of this problem is that some manufacturers configure the zip drive as the primary drive. Reconfiguring these machines may not be practical when many workstations are involved. A faster way to fix the problem is to rename the drive letters so that
the CD-ROM drive comes alphabetically before the zip drive. If this is not feasible, inserting an empty disc in the zip drive may resolve the problem.