Olympus CAMEDIA C-2 ZOOM Reference Manual page 84

Formatting can also be executed from the playback mode.
• Never open the card cover or remove the batteries during formatting
as this may cause malfunction of the card.
• Never connect or disconnect the AC adapter during formatting as this
may cause malfunction of the card.
• Cards with a write-protect seal cannot be formatted. Remove the seal
before formatting the card. Do not reuse the removed seal.
Formatting (Card setup)
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