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Why there are extra leading & ending characters when I read a card just being encoded?

April 26, 2017card characters encoded ending extra Leading read

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Why there are extra leading & ending characters when I read a card just being encoded?

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They are the standard sentinels required for each individual track based on the card type selected. The utility program will encode the sentinels with the card data for each track automatically. The sentinels should not be added to the card data for writing when encoding a card using standard a card type. (e.g.