The HC-X1000 supports a better memory card type than most video cameras that have been available for around the same time as it. This Panasonic camcorder supports an SDXC memory card, whereas most video cameras that are a comparable age to it support 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 actually the best supported memory card type across all comparable spec video cameras that are a similar age to the HC-X1000.
The worst supported memory card type amongst similar types of video camera is MS Pro-HG.
SDHC cards are DS cards with a higher capacity of up to 32GB.