The MVC-FD7 is essentially a camcorder that writes single
jpeg-compressed images to floppy instead of full video to tape.
Like camcorders, the images are acquired interlaced. This is
a snapshot in "field" mode (e.g. it uses only one half of the
interlaced frame. So the camera resampled this image from
640x240 original samples). This is with compression set to
"normal", so the full-size (640x480) image is only 31K.