The Legria HF R78 supports a better memory card type than most small sensor size camcorders that have been available for a comparable time to it. This Canon camcorder supports an SDXC memory card, whereas most small sensor size camcorders that have been on the market for a comparable time to it support an SDHC memory card. In addition, this video camera supports an 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 actually the best supported memory card type across all small sensor size camcorders that were launched around the same time as the Legria HF R78.
The worst supported memory card type amongst similar types of video camera is SD.
SDHC cards are DS cards with a higher capacity of up to 32GB.