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Canon has released a firmware update for the VIXIA HG20/HG21 Camcorders.
Changes in Firmware Version 188.8.131.52:
These models are now able to record, play back, and copy movies in MXP and FXP modes with Class10 SD or SDHC memory cards.
Firmware Version 184.108.40.206 is for camcorders with firmware version 220.127.116.11 or 18.104.22.168. If the camcorder's firmware is already Version 22.214.171.124, it is not necessary to update the firmware. Once the camcorder is updated to the latest version, it cannot be restored to a previous version.
The new firmware (Version 126.96.36.199) for VIXIA HG20 can be downloaded by clicking here.
The new firmware (Version 188.8.131.52) for VIXIA HG21 can be downloaded by clicking here.