The HDR-AS200 supports a better memory card type than most camcorders that are a similar age to it. This Sony video camera supports an SDXC memory card, whereas most video cameras that were released more than two years ago support an SD memory card. In addition, this video camera support sd and sdhc and sdxc 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).
An SDXC memory card is in fact the best supported memory card type across all camcorders of this spec and age.
A MicroSDXC memory card is the worst supported memory card type amongst similar types of video camera.
SDHC cards are DS cards with a higher capacity of up to 32GB.