Sony ICD-PX470 Help Manual page 160

Do not use a memory card under the following conditions:
Locations beyond the required operating conditions, including locations, such as the hot interior of a car parked in the sun
and/or in the summer, the outdoors exposed to direct sunlight, or a place near a heater.
Humid locations or locations with corrosive substances present.
When using a memory card, make sure to check the correct insertion direction into the memory card slot.
Do not put any adhesive label on a memory card as it may cause the card to be stuck in the slot.
Related Topic
Formatting the memory (Format Built-In Memory/Format SD Card)
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