The JVC GZ-R15 supports a better memory card type than most video cameras of a comparable type and age to it. This JVC video camera supports an SDXC compatible memory cards, whereas most comparable spec camcorders that are a similar age to it support an SDHC compatible memory cards. SDXC cards are SD cards but with a much higher capacity and faster processing speeds. They have a maximum capacity of 2TB (Terabytes).
This video camera's memory card type (SDXC) is in fact the best supported memory card type across all medium total megapixels camcorders that have been available for around the same time as the GZ-R15.
The worst supported memory card type amongst similar types of video camera is MicroSD (Transflash).