Originally Posted by
Max Angle
Not sure what you mean by "provision" but the erase button deletes the entire recording as long as the aircraft is on the ground and the brake is set (A320), it was the only way any of the pilot unions would agree to having them. I would expect that any cockpit video recorder would offer the same facility.
Are you allowed to routinely erase CVR recordings at your airline solely at your discretion? I hope not...