HP rm475e DVD-ROM Drive - Manual (Page 14)

ENGLISH
Insert and remove a disc
To insert a disc (Tray-Load type drive):
(1) While the DVD writer is powered up, push the Eject button on the front
panel to eject the tray. Then pull the tray out all the way.
(2)
Place the disc, label side up, onto the tray and make sure the center of the
disc is aligned with the spindle as shown. Press down at the center of the
disc until it is clicked onto the spindle platform.
(3) Push the tray back until it is locked firmly.
Note:
Use caution when pressing disc down or pulling/pushing tray, as excessive
force may cause damage.
Never touch the lens of the laser assembly.