The HDR-CX220 supports an SDXC compatible memory cards which is better than the SDHC compatible memory cards supported by most medium total megapixels video cameras that were released around the same time as it. In addition, this camcorder support MS PRO Duo and MS Pro-HG Duo and SD compatible memory cardss. SDXC cards are SD cards but with a much higher capacity and faster processing speeds. They have a maximum capacity of 2TB (Terabytes).
This camcorder's memory card type (SDXC) is actually the best supported memory card type across all video cameras of a similar spec and age to the HDR-CX220.
Across similar types of camcorder the worst supported memory card type is MicroSD (Transflash).
SDHC cards are DS cards with a higher capacity of up to 32GB.