The Zoom Q4 supports an SDXC memory card which is better than most similar spec video cameras that are a comparable age to it. Most camcorders of a comparable age and spec to it support an SD memory card. This Zoom camcorder also supports an 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 actually the best supported memory card type across all small sensor size camcorders that have been available for more than two years.
The worst supported memory card type amongst similar types of video camera is MicroSD (Transflash).
SDHC cards are DS cards with a higher capacity of up to 32GB.