Sony VPCL14J9E/S User Manual page 63

Using Your VAIO Computer >
Using "Memory Stick"
!
Before using "Memory Stick Micro" ("M2"), be sure to insert it into an "M2" Duo adaptor. If you insert the media directly into the "Memory Stick Duo"
slot without the adaptor, you may not be able to remove it from the slot.
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