RECORDING AND/OR PLAYBACK APPARATUS AND MAGNETIC-TAPE CASSETTE FOR SUCH APPARATUS

摘要

A cassette (4) with a magnetic tape (3) can be loaded into the apparatus. An erase head and a magnetic head (13) interact with the magnetic tape (3). A magnetising device (22) serves for the selective application of markings on a marking symbol carrier (19). The markings identify the relative position of the magnetic head (13) with respect to the magnetic tape (3). The magnetising device (22) has in a marking zone (25) of a marking symbol carrier (19) a marking element (23). The marking element (23) can be moved along the marking zone (25) synchronously with the relative movement between magnetic tape (3) and magnetic head (13). The magnetising device (22) serves for the selected magnetising of the marking element (23). With the marking element (23), the markings can be recorded on the marking symbol carrier (19) for storage and optical reading-out of the markings. The marking symbol carrier (19) is attached on the outside of a cassette wall (17).