MO Disk (Resident Evil Zero)

The label reads "Security System ver. 1.02". It's probably used to activate some sort of security system.

Image of MO Disk
A plastic case containing an magneto-optical disk.

This disk contains the code needed to open the doors guarded by knights throughout the Training Facility. Use this disk on the podium in the Lecture Room which will return you a two digit code and light up the consoles on each of the desks in the room. Use the Microfilm Image to determine which desks the code digits refer to, and use both characters to activate the switches of these desks one after the other in quick succession. This will unlock the doors to the following locations: