The HC-W570 supports an SDXC memory card which is better than most video cameras of this type and age. Most comparable spec camcorders that are a similar age to it support 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 in fact the best supported memory card type across all small sensor size video cameras that were released more than a year ago.
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.