Toshiba Tecra R850 - Manual (Page 101)

The card is designed so that it can be inserted only one way. Do not
try to force the card into the slot.
Do not leave a card partially inserted in the slot. Press the card until
you hear it click into place.
Memory card care
Set the write-protect switch to the lock position, if you do not want to
record data.
Memory cards have a limited lifespan, so it is important to backup
important data.
Do not write to a card if the battery power is low. Low power could
affect writing accuracy.
Do not remove a card while read/write is in progress.
For more details on using memory cards, see manuals accompanying the
cards.
About the write-protect
The memory media cards have a function for protect.
SD Card (SD memory card, SDHC memory card and SDXC memory
card)
Memory Stick (Memory Stick, Memory Stick PRO, Memory Stick Duo,
Memory Stick PRO Duo, Memory Stick Micro)
Set the write-protect switch to the lock position, if you do not want to record
data.
Inserting a memory media
The following instructions apply to all types of supported media devices. To
insert a memory media, follow the steps as detailed below:
1.
Turn the memory media so that the contacts (metal areas) are face
down.
2. Insert the memory media into the memory media slot on the side of
the computer.
3. Press the memory media gently to ensure a firm connection is made.
R850/R840/R830
User's Manual 3-36