The Canon Legria HF R67 supports an SDXC memory card which is better than the SD memory card supported by most camcorders of this type and age. In addition, this video camera supports an SDHC 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 across all small sensor size camcorders that came out around the same time as the Legria HF R67.
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.