The Sony NEX-VG20 supports a better memory card type than most video cameras that have been around for more than two years. This Sony video camera supports an SDXC memory card, whereas most camcorders of this age and type 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 video cameras that have been around for around the same time as the NEX-VG20.
An MS Pro-HG Duo memory card is the worst supported memory card type across similar types of camcorder.
SDHC cards are DS cards with a higher capacity of up to 32GB.