recording backwards
 

Hello,
I am searching for a camcorder that has this feature of continuously recording 3 (or preferably more) seconds. From the moment you push the record button, the clip will include the previous 3 seconds. I somewhere read that the canon HF S21 has this feature, but I can't remember where. I would just like to know how this feature is called, so I can do a proper search for camera's that have this feature.
Thanks,
Rob

Cache recording ,Pre-Record Buffer, loop cache, loop buffer, Pre-buffer , pre-record cache

OK, thanks. That helped.

Vixia HF
 

All current Vixia HF models have this (HF20, HF200, HF-S10, HF-S100, HF-S20, HF-S21, HF-S200...).