The Panasonic HDC-TM900 supports a better memory card type than most video cameras of a similar type and age to it. This camcorder supports an SDXC memory card, whereas most similar spec camcorders that are a comparable age to it support an SD 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).
This video camera's memory card type (SDXC) is actually the best supported memory card type amongst all small sensor size camcorders that are a similar age to the HDC-TM900.
A MicroSD (Transflash) memory card is the worst supported memory card type across similar types of video camera.
SDHC cards are DS cards with a higher capacity of up to 32GB.