The Vixia HF R42 supports a better memory card type than most camcorders of a comparable spec and age to it. This video camera supports an SDXC memory card, whereas most camcorders of a similar age and spec to it support an SD memory card. This Canon video camera also 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 amongst all camcorders of this spec and age.
Amongst similar types of camcorder the worst supported memory card type is MicroSD (Transflash).
SDHC cards are DS cards with a higher capacity of up to 32GB.