Video Floppy
From Just Solve the File Format Problem
Video Floppy (VF) was one of several odd-sized floppy formats that never caught on. It was 2 inches in size, similar to the LT-1 but not compatible with it. It was used with some still video cameras (an odd sort of camera that takes still pictures and stores them in video-frame format) from Sony and Canon. Unlike the usual digital floppies, this one stored analog data in NTSC or PAL format, storing 25 or 50 images per disk in different modes.