The HDR-CX250 supports an SDXC memory card which is better than most medium sensor size video cameras that have been on the market for more than two years. Most similar spec video cameras that have been available for around the same time as it support an SD memory card. In addition, this Sony camcorder 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 across all video cameras that are a comparable age to the HDR-CX250.
The worst supported memory card type amongst similar types of video camera is MicroSDXC.
SDHC cards are DS cards with a higher capacity of up to 32GB.