The Canon XF205 supports an SDXC memory card which is better than the SDHC memory card supported by most latest small sensor size camcorders. This video camera also support a CF and SD memory card. SDXC cards are SD cards but with a much higher capacity and faster processing speeds. They have a maximum capacity of 2TB (Terabytes).
An SDXC memory card is in fact the best supported memory card type amongst all small sensor size camcorders that have been on the market for a comparable time to the XF205.
An SD memory card is the worst supported memory card type amongst similar types of camcorder.
SDHC cards are DS cards with a higher capacity of up to 32GB.