The Legria HF G40 supports an SDXC memory card which is better than most small sensor size camcorders that were released in the last year. Most recently released small sensor size camcorders support an SDHC memory card. This video camera also supports 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 actually the best supported memory card type across all small sensor size camcorders that were released in the last year.
Across similar types of camcorder the worst supported memory card type is SD.
SDHC cards are DS cards with a higher capacity of up to 32GB.