The H8000 CF card will not work with Orville.
A 1M sram card should work (flash or ATA will not).
You don't say what type your 512K card is.
It obviously could be a hardware fault, but more likely it is a card incompatability.
Try new batteries in the cards – if they don't have them, they may not be sram (but, some are rechargeable).
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