IBM 48X-20X - Manual (Page 18)

To load a CD into a vertically mounted CD-ROM drive do the following:
1. Press the Eject/Load button.
2. Look at the illustrations and compare them to your loading tray.
v If your loading tray looks like the left illustration, insert the CD carefully
so that the edges of the CD are underneath the tabs on the loading tray.
These plastic tabs cover the edges of the CD and hold it in place. The
tabs are attached to the tray itself and cannot be moved.
v If your loading tray looks like the right illustration, insert the CD into
the tray, and gently push the movable tab forward to hold the CD in
place.
3. Close the loading tray by pressing the Eject/Load button, or by gently
pushing the tray in.
1-10 48X-20X Internal IDE CD-ROM Drive: User’s Guide