The JVC GY-HMQ10 supports an SDXC compatible memory cards which is better than the SDHC compatible memory cards supported by most medium total megapixels camcorders that have been on the market for a similar time to it. 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 amongst all video cameras of a comparable age and spec to the GY-HMQ10.
The worst supported memory card type across comparable types of video camera is MicroSD (Transflash).
SDHC cards are DS cards with a higher capacity of up to 32GB.