The HXR-NX3-1 supports an SDXC memory card which is better than the SD memory card supported by most camcorders of a similar type and age to it. In addition, this Sony video camera support an MS Duo and 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 in fact the best supported memory card type across all camcorders that are a similar age to the HXR-NX3-1.
The worst supported memory card type amongst comparable types of video camera is MicroSD (Transflash).
SDHC cards are DS cards with a higher capacity of up to 32GB.