HP PC - Manual (Page 55)

Using the Memory Card Reader 49
Using the Memory Card Reader
Digital cameras and other digital imaging devices use memory cards, or media,
to store digital picture files. The optional memory card reader (select models only)
can read and write to a variety of types of memory cards and the IBM Microdrive
disk drive.
You can place media in one or more of the card slots and use each media
independently. Place only one piece of media in a slot at one time.
Each card slot has its own drive letter and icon. When you insert media, the display
label may change to the title of the media, if the title is present.
If you open the Safely Remove Hardware window by mistake, click Close.
CAUTION: Do not click Stop in the Safely Remove Hardware window
with the USB Mass Storage Device selected. Doing so removes the
operating system recognition of the memory card reader from your
PC; you must restart the PC to see your memory card reader again.