Controlling erasing of tracks of a recording medium used with a still video apparatus

摘要

A still video apparatus includes a recording and erasing system which includes a recording system for recording image signals corresponding to one picture composed of one or two fields on a plurality of tracks formed on a recording medium, and an erasing system for erasing the image signals recorded on the tracks of the recording medium. The recording and the erasing system includes an erasure discriminating function for erasing the image signals recorded on the tracks belonging to a predetermined track group selected from a plurality of tracks on which the image signals corresponding to one picture are recorded, when any track other than the tracks on which the image signals for constituting the picture are recorded is included in the predetermined track group; and for terminating the erasing of image signals recorded on the tracks belonging to the track group, when any track other than the tracks on which image signals for constituting the picture are recorded is not included in the predetermined track group. The recording and erasing system further includes a function for setting a predetermined track group selected from a plurality of tracks on which the image signals corresponding to the one picture are recorded, and for erasing all the image signals recorded on the predetermined track group at one erasing operation.