Patent ID: 8233790

Claim:
A data recording apparatus comprising: a buffer memory that temporarily records data; a first card slot and a second card slot into which can be inserted memory cards that have memories for storing data; a determining section that determines communication speeds of the memory cards inserted in the first card slot and the second card slot, and that sets the memory card determined to have a higher communication speed as a first memory card and sets the memory card determined to have a communication speed lower than that of the first memory card as a second memory card; a control section that, when created data is set to be recorded in both the first memory card and the second memory card and an amount of empty space in the buffer memory is less than or equal to a predetermined value, performs control to record the created data in only the first memory card and erases, from the buffer memory, data that has been recorded in the first memory card; and a transmission control section that, while a transmission path for image files from the first memory card to the second memory card is open, transmits to the second memory card, from among pieces of image data recorded in the first memory card, image files that are not recorded in the second memory card.