The Sony HDR-CX730 supports an SDXC memory card which is better than the SD memory card supported by most video cameras that came out around the same time as it. In addition, this video camera support MS PRO Duo Mark 2 and MS Pro-HG Duo and SDHC 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 amongst all comparable spec camcorders that were launched more than two years ago.
Amongst comparable types of camcorder the worst supported memory card type is MicroSDXC.
SDHC cards are DS cards with a higher capacity of up to 32GB.