Abstract: An electronic video data recording system includes a camera apparatus for photoelectric-converting an incident optical image into electronic image data; a memory card detachably mounted on the camera apparatus and containing a random access memory to store the electronic image data; and a video tape recorder or other outside storage device for recording the image data which have been previously stored in the random access memory of the detachable memory card, the image data being supplied from the memory card through the camera apparatus. When taking the image, the detachable memory card is mounted on the camera apparatus so as to store the image data into the random access memory thereof. When the image data stored in the detachable memory card are recorded, they are transferred from the memory card into the video tape recorder, via the camera apparatus. The detachable memory card can then be re-used.