The Panasonic HC-WX970 supports an SDXC compatible memory cards which is better than the SDHC compatible memory cards supported by most video cameras of this spec and age. This Panasonic camcorder also supports an SD compatible 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).
This camcorder's memory card type (SDXC) is actually the best supported memory card type amongst all similar spec camcorders that have been around for around the same time as the HC-WX970.
An SD compatible memory cards is the worst supported memory card type across comparable types of camcorder.
SDHC cards are DS cards with a higher capacity of up to 32GB.